River dredging and pollution discharge device

Abstract

The utility model relates to the technical field of hydraulic engineering and disclose river channel dredging and sewage device, including base, the surface sliding of base is provided with mobile seat and sliding seat, the surface of mobile seat is provided with motor, the surface of sliding seat is provided with impeller chamber, the side wall of sliding seat and same side mobile seat all are through pivot swing installation rotatory board, be provided with connecting portion between rotatory board, the lower surface of base and be located the fixed plate of the direct below of connecting portion, the surface of fixed plate is provided with stud, just the stud with connecting portion screw connection. The utility model can protect motor, make motor can be in the no load state and start, reduce the starting burden, improve the service life of motor.

Description

Technical Field

[0001] This utility model relates to the field of water conservancy engineering technology, and in particular to a river dredging and sewage discharge device. Background Technology

[0002] When dredging and discharging sewage into rivers, the stable operation of mud pumps faces a potential problem: the core power source of the mud pump is the motor. The motor's output shaft drives the impeller in the impeller chamber to rotate at high speed through a transmission mechanism consisting of pulleys and a drive belt, thereby achieving the extraction and transportation of mud. When the motor unexpectedly stops due to a sudden situation (such as power failure, mechanical jamming, etc.), the flow of mud in the impeller chamber will suddenly be interrupted, and some silt will remain in the impeller chamber, and may even accumulate on the impeller surface. At this time, if the motor is restarted, the impeller needs to overcome the resistance of the residual silt instantly to resume rotation. This residual silt will generate a large static friction and resistance force on the impeller, causing the load on the motor to increase sharply during startup, which can easily cause the motor to fall into an overload state. Under such overload startup conditions for a long time, the windings, bearings and other key components inside the motor will be subjected to additional stress and heat, which will not only shorten the service life of the motor, but may also cause more serious failures such as motor burnout, affecting the continuity and efficiency of the dredging project. To solve the above problems, a river dredging and sewage discharge device was designed. Utility Model Content

[0003] This utility model aims to at least partially solve one of the technical problems in related technologies. Therefore, one objective of this utility model is to provide a river dredging and sewage discharge device that allows the motor to start under no-load conditions, reducing the starting burden and improving the motor's service life.

[0004] The river dredging and sewage discharge device proposed according to this utility model includes a base, on the surface of which a movable seat and a sliding seat are slidably disposed. A motor is disposed on the surface of the movable seat, and an impeller chamber is disposed on the surface of the sliding seat. Rotating plates are movably mounted on the side walls of the sliding seat and the movable seat on the same side via rotating shafts. A connecting part is disposed between the rotating plates. A support plate is fixed on the lower surface of the base and directly below the connecting part. A stud is disposed on the surface of the support plate, and the stud is threadedly connected to the connecting part.

[0005] The connecting part includes two mirror-symmetrical clamping blocks. The two clamping blocks are respectively connected to the rotating plates on both sides by hinges. The two clamping blocks are fixed together by threaded mounting bolts. The middle of the two clamping blocks is provided with an internal threaded semi-circular groove.

[0006] Preferably, a handle is fixed to the top of the stud, and hemispherical heads are fixedly installed at both ends of the handle. Limiting rings are fixed to the bottom of the stud and on the upper and lower sides of the support plate, respectively.

[0007] Preferably, the sidewalls of the clamping block are symmetrically fixed with lugs for installing the bolts.

[0008] Preferably, the base has symmetrical guide rail grooves on its surface, and the lower surfaces of the slide and the movable seat are both fixed with guide rails, which are slidably fitted into the guide rail grooves.

[0009] Preferably, the cross-section of the guide rail groove is dovetail-shaped, and the cross-section of the guide rail strip is dovetail-shaped.

[0010] Preferably, each surface of the movable base is fixed with a connecting frame, and the motor is fixed to the connecting frames on both sides.

[0011] Preferably, a bearing housing is installed inside the slide, and a drive shaft is rotatably installed inside the bearing housing. The impeller chamber and a large pulley are fixed at both ends of the drive shaft, and a small pulley is fixed at the output end of the motor. The large pulley and the small pulley are arranged on the same side, and multiple drive belts are fitted on the surface of the large pulley and the small pulley.

[0012] Preferably, two supports are symmetrically installed on the lower surface of the base. The supports are L-shaped, and two small holes are symmetrically opened on the upper surface of the horizontal part of the supports.

[0013] Preferably, the vertical part of the support has a weight-reducing opening, which is rectangular in shape.

[0014] The beneficial effects of this utility model are:

[0015] 1. The motor and impeller chamber slide along the guide rail groove of the base via guide rails, and the distance between them can be flexibly adjusted. When the motor unexpectedly stops and there is sludge remaining in the impeller chamber, rotating the handle drives the stud to rotate, causing the connecting part to move the rotating plate to push and pull the slide and the moving seat, reducing the distance between the motor and the impeller chamber. At this time, the transmission belt loosens, and the power connection between the motor and the impeller is temporarily disconnected. The motor starts in a no-load state. After the motor runs stably, the stud is adjusted in the opposite direction to increase the distance, so that the transmission belt is tensioned again, and the power is transmitted to the impeller through the pulley. This avoids the overload impact at the moment of startup, protects the motor windings, bearings and other critical components, and extends the service life of the equipment.

[0016] 2. The connection part uses two clamping blocks, and bolts are used to keep the two clamping blocks in a stable relative position. When small debris enters the space formed by the two internal thread semi-circular grooves and affects the rotation of the stud, the two clamping blocks can be separated after the bolts are removed, and the small debris can be cleaned. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a river dredging and sewage discharge device according to the present invention;

[0018] Figure 2 This is a perspective view of a river dredging and sewage discharge device according to the present invention.

[0019] Figure 3 for Figure 1 A magnified view of a section at point A in the middle;

[0020] Figure 4 This is an assembly diagram of the stud, impeller chamber and base in a river dredging and sewage discharge device of this utility model;

[0021] Figure 5 This is a schematic diagram of the assembly of the support and base in a river dredging and sewage discharge device according to the present invention.

[0022] Figure 6 This is a schematic diagram of the assembly of the clamping block and the rotating plate in a river dredging and sewage discharge device according to the present invention.

[0023] In the diagram: 1. Base; 11. Support; 12. Guide rail groove; 2. Motor; 21. Connecting frame; 22. Moving seat; 23. Small pulley; 3. Impeller chamber; 31. Slide; 32. Bearing seat; 33. Large pulley; 34. Drive shaft; 4. Drive belt; 5. Stud; 51. Handle; 52. Rotating plate; 53. Clamp; 54. Support lug; 55. Support plate; 56. Limiting ring; 57. Bolt; 58. Internal threaded semi-circular groove; 6. Guide rail. Detailed Implementation

[0024] Reference Figure 1-6 A river dredging and sewage discharge device includes a base 1. A movable seat 22 and a slide 31 are slidably disposed on the surface of the base 1. A motor 2 is disposed on the surface of the movable seat 22. An impeller chamber 3 is disposed on the surface of the slide 31. A rotating plate 52 is movably mounted on the side wall of the slide 31 and the movable seat 22 on the same side via a rotating shaft. A connecting part is disposed between the rotating plates 52. A support plate 55 is fixed on the lower surface of the base 1 and directly below the connecting part. A stud 5 is disposed on the surface of the support plate 55 and is threadedly connected to the connecting part.

[0025] The connecting part includes two mirror-symmetrical clamping blocks 53. Hinges are installed between each clamping block 53 and the two rotating plates 52 on either side. There are two hinge installation positions: First, the hinge is installed at the upper end between the clamping block 53 and the rotating plate 52. In this case, only rotating the stud 5 can move the entire connecting part downwards, causing the rotating plate 52 to deflect downwards, bringing the large pulley 33 and the lower pulley closer together. Finally, rotating the stud 5 in the opposite direction resets the connection. Second, the hinge is installed at the lower end between the clamping block 53 and the rotating plate 52. In this case, only rotating the stud 5 can move the entire connecting part upwards, causing the rotating plate 52 to deflect upwards, bringing the large pulley 33 and the lower pulley closer together. Finally, rotating the stud 5 in the opposite direction resets the connection. The two clamping blocks 53 are fixed together by threaded mounting bolts 57. The middle of the two clamping blocks 53 has an internally threaded semi-circular groove 58. The internally threaded semi-circular grooves 58 together form a circular space that fits the stud 5, allowing the stud 5 to pass through.

[0026] When small debris enters this circular space, causing the stud 5 to be obstructed from rotating, simply unscrew the bolt 57 that secures the clamp 53 to easily separate the two clamps 53. At this point, the debris between the clamps 53 will be fully exposed, making it easy for staff to clean thoroughly and preventing the accumulation of debris from affecting the normal rotation of the stud 5. After cleaning, reassemble the clamps 53 and tighten the bolt 57 to restore the normal function of the connection. The entire cleaning process is simple and convenient, without the need to disassemble other complex parts.

[0027] A handle 51 is fixed to the top of the stud 5, and hemispherical heads are fixed to both ends of the handle 51. Limiting rings 56 are fixed to the bottom of the stud 5 and on the upper and lower surfaces of the support plate 55 respectively. The limiting rings 56 are fixed to the stud 5 and fit against the upper and lower surfaces of the support plate 55.

[0028] The sidewalls of the clamping block 53 are symmetrically fixed with lugs 54 for mounting bolts 57.

[0029] The base 1 has symmetrical guide rail grooves 12 on its surface. Guide rails 6 are fixed to the lower surfaces of the slide 31 and the movable seat 22, and are slidably fitted into the guide rail grooves 12. The motor 2 and the impeller chamber 3 are slidably connected via the guide rail grooves 12 and guide rails 6 on the base 1, and the distance between them can be flexibly adjusted. When the motor 2 stops unexpectedly and sludge remains in the impeller chamber 3, the handle 51 can be turned to rotate the stud 5, causing the connecting part to push or pull the rotating plate 52, thereby moving the slide 31 and the movable seat 22, reducing the distance between the motor 2 and the impeller chamber 3. At this time, the transmission belt 4 connecting the two will loosen, temporarily interrupting the power transmission between the motor 2 and the impeller. Thus, the motor 2 starts without load and can start smoothly. After the motor 2 runs stably, the handle 51 can be rotated in the opposite direction to adjust the stud 5, increasing the distance between the motor 2 and the impeller chamber 3, causing the transmission belt 4 to tighten again. Power will then be smoothly transmitted to the impeller through the pulley, driving its operation. This design effectively avoids the overload impact caused by excessive load at the moment of motor 2 startup, and plays a good protective role for key components such as motor 2 windings and bearings, which helps to extend the overall service life of the equipment.

[0030] The cross-section of the guide rail groove 12 is dovetail-shaped, and the cross-section of the guide rail strip 6 is dovetail-shaped.

[0031] The surface of the movable base 22 is fixed with a connecting frame 21, and the motor 2 is fixed to the connecting frames 21 on both sides.

[0032] The slide 31 has a bearing housing 32 installed inside, and a drive shaft 34 is rotatably installed inside the bearing housing 32. The two ends of the drive shaft 34 are respectively fixed with an impeller chamber 3 and a large pulley 33. The output end of the motor 2 is fixed with a small pulley 23. The large pulley 33 and the small pulley 23 are arranged on the same side, and multiple drive belts 4 are fitted on the surface of the large pulley 33 and the small pulley 23.

[0033] Two supports 11 are symmetrically installed on the lower surface of the base 1. The supports 11 have an L-shaped structure and two small holes are symmetrically opened on the upper surface of the horizontal part of the supports 11.

[0034] The vertical part of the support 11 has a weight reduction opening, which is rectangular in shape. The design of the weight reduction opening reduces the production cost of the support 11. The support 11 is installed at the required position using small holes, thus completing the restriction of the position of the base 1.

Claims

1. A river dredging and sewage discharge device, characterized in that: The device includes a base, on the surface of which a movable seat and a slide are slidably disposed. A motor is disposed on the surface of the movable seat, and an impeller chamber is disposed on the surface of the slide. Rotating plates are movably mounted on the side walls of the slide and the movable seat on the same side via a rotating shaft. A connecting part is disposed between the rotating plates. A support plate is fixed on the lower surface of the base and directly below the connecting part. A stud is disposed on the surface of the support plate, and the stud is threadedly connected to the connecting part. The connecting part includes two mirror-symmetrical clamping blocks. The two clamping blocks are respectively connected to the rotating plates on both sides by hinges. The two clamping blocks are fixed together by threaded mounting bolts. The middle of the two clamping blocks is provided with an internal threaded semi-circular groove.

2. The river dredging and sewage discharge device according to claim 1, characterized in that: A handle is fixed to the top of the stud, and hemispherical heads are fixed to both ends of the handle. Limiting rings are fixed to the bottom of the stud and on the upper and lower sides of the support plate.

3. The river dredging and sewage discharge device according to claim 1, characterized in that: The sidewalls of the clamping block are symmetrically fixed with lugs for installing the bolts.

4. The river dredging and sewage discharge device according to claim 1, characterized in that: The base has symmetrical guide rail grooves on its surface. The lower surfaces of the slide and the movable seat are both fixed with guide rails, and the guide rails are slidably fitted into the guide rail grooves.

5. The river dredging and sewage discharge device according to claim 4, characterized in that: The cross-section of the guide rail groove is dovetail-shaped, and the cross-section of the guide rail strip is dovetail-shaped.

6. The river dredging and sewage discharge device according to claim 1, characterized in that: Each of the movable seats has a connecting frame fixed to its surface, and the motor is fixed to the connecting frames on both sides.

7. The river dredging and sewage discharge device according to claim 1, characterized in that: The slide block has a bearing housing inside, and a drive shaft is rotatably mounted inside the bearing housing. The impeller chamber and a large pulley are fixed at both ends of the drive shaft, respectively. A small pulley is fixed at the output end of the motor. The large pulley and the small pulley are arranged on the same side, and multiple drive belts are fitted on the surface of the large pulley and the small pulley.

8. The river dredging and sewage discharge device according to claim 1, characterized in that: Two supports are symmetrically installed on the lower surface of the base. The supports are L-shaped and have two small holes symmetrically opened on the upper surface of the horizontal part of the supports.

9. The river dredging and sewage discharge device according to claim 8, characterized in that: The vertical part of the support has a weight-reducing opening, which is rectangular in shape.

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