Adjustable speed pusher with fault detection function

Abstract

This utility model discloses an adjustable speed pusher with fault detection function, including a speed regulator. One end of the speed regulator is provided with a sealing gasket, and the other side of the sealing gasket is provided with a junction box. A composite connector electrically connected to the speed regulator is installed at one end of the junction box. The other end of the speed regulator is electrically connected to a permanent magnet synchronous motor. This adjustable speed pusher with fault detection function utilizes a PWM variable frequency speed control box driven by a permanent magnet synchronous motor. It can adjust the pusher speed in real time according to external commands, offering high flexibility and good controllability to meet the different pusher speed requirements of various processes. It also provides better energy-saving effects. Furthermore, this utility model can monitor its own circuit and vibration frequency information in real time and feed it back to the operator's control terminal for timely fault detection and troubleshooting, ensuring smooth production.

Description

Technical Field

[0001] This utility model relates to the field of flow promoters, specifically an adjustable speed flow promoter with fault detection function. Background Technology

[0002] A flow promoter, also known as a submersible flow promoter, is a type of mixing and low-speed flow propulsion equipment. It features a compact structure, small size, light weight, simple operation and maintenance, convenient and quick installation, and long service life. It can generate a strong water flow with low tangential flow and can be used to create water flow in the water circulation, nitrification, denitrification, and phosphorus removal stages of the tank. Therefore, it is widely used in aeration tanks and anaerobic tanks of industrial and municipal wastewater treatment plants.

[0003] Depending on the working environment, people have invented propellers with specific functions. For example, Chinese patent application number CN202322600502.5 describes a multi-support submersible propeller that solves the problem of inconvenient impeller replacement in existing submersible propellers. This invention facilitates the disassembly and assembly of the propeller impeller and the motor shaft through a disassembly and assembly structure. Disassembly is required for propeller impeller maintenance; the screws are unscrewed from the screw holes, releasing the fixation between the guide sleeve and the motor shaft. Pulling the propeller impeller to one end then separates the sliding groove and sliding column inside the fixing sleeve, allowing the propeller impeller to be removed. While the aforementioned patent represents a typical propeller, in practical applications, it cannot monitor its operating status in real time to ensure work efficiency, nor can it adjust the speed according to actual needs, resulting in poor general applicability and inadequate energy-saving effects. Summary of the Invention

[0004] The purpose of this invention is to provide an adjustable speed propeller with fault detection function, so as to solve the problems mentioned in the background art, such as the inability to adjust the rotation speed of the propeller according to the needs of different liquid flow rates, poor energy saving effect, and inability to monitor its own operating status in real time to ensure work efficiency.

[0005] The technical solution of this utility model is implemented as follows: an adjustable speed thruster with fault detection function includes a speed regulator. One end of the speed regulator is provided with a sealing gasket, and the other side of the sealing gasket is provided with a junction box. The end of the junction box is equipped with a composite connector electrically connected to the speed regulator. The other end of the speed regulator is electrically connected to a permanent magnet synchronous motor. The permanent magnet synchronous motor is connected to a drive shaft after being speed-changed by a helical gear reducer. Three equally spaced thruster blades are installed on the circumference of the drive shaft. The speed regulator includes a sealed housing. The sealed housing is provided with a circuit protection circuit electrically connected to the composite connector. The circuit protection circuit is electrically connected to a PWM variable frequency speed control box.

[0006] Preferably, the drive shaft and the propulsion fan blades are detachably fixed together by bolts.

[0007] Preferably, a vibration detection sensor is installed at the end of the drive shaft, and the vibration detection sensor is electrically connected to the speed regulator through a conductive rotating slip ring disposed between the helical gear reducer and the drive shaft.

[0008] Preferably, a sealing cover is provided on the outside of the drive shaft.

[0009] Preferably, a side-mounted fixing bracket is fixedly installed on the side of the junction box, and a fixing seat is provided at the bottom of the junction box and the permanent magnet synchronous motor.

[0010] Preferably, a connecting mounting bracket is fixedly provided between the permanent magnet synchronous motor and the fixed base.

[0011] Preferably, the PWM variable frequency speed control box is electrically connected to the circuit detection circuit, the circuit protection circuit is electrically connected to the circuit detection circuit, and the circuit detection circuit is electrically connected to the composite terminal block.

[0012] Preferably, the sealed housing is filled with an insulating protective gas.

[0013] By adopting the above technical solution, the beneficial effects of this utility model are as follows:

[0014] This type of adjustable speed pusher with fault detection function utilizes a PWM variable frequency speed control box and a permanent magnet synchronous motor drive. It can adjust the push speed in real time according to external commands, which is highly flexible and controllable to meet the different push speed requirements of various processes. It also has better energy saving effect. At the same time, this utility model can also monitor its own circuit and vibration frequency information in real time and feed it back to the control terminal of the staff so as to detect and eliminate faults in time and ensure the smooth operation of production. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is the front view of the present invention.

[0017] Figure 2 This is an internal structural view of the speed regulator of this utility model.

[0018] The components include: 1. Side-mounted bracket; 2. Fixing base; 3. Junction box; 4. Sealing gasket; 5. Speed ​​regulator; 6. Permanent magnet synchronous motor; 7. Helical gear reducer; 8. Drive shaft; 9. Push fan blade; 10. Sealing cover; 11. Vibration detection sensor; 12. Conductive rotary slip ring; 13. Composite connector; 14. Connecting mounting bracket; 501. Sealing housing; 502. Circuit protection circuit; 503. PWM frequency conversion speed control box; 504. Circuit detection circuit; 505. Insulating protective gas. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] See Figures 1-2 An adjustable speed thruster with fault detection function includes a speed regulator 5. One end of the speed regulator 5 is provided with a sealing gasket 4, and the other side of the sealing gasket 4 is provided with a junction box 3. The end of the junction box 3 is equipped with a composite connector 13 electrically connected to the speed regulator 5. The other end of the speed regulator 5 is electrically connected to a permanent magnet synchronous motor 6. The permanent magnet synchronous motor 6 is connected to a drive shaft 8 after being speed-changed by a helical gear reducer 7. Three thruster blades 9 are installed on the circumference of the drive shaft 8. The speed regulator 5 includes a sealing housing 501. The sealing housing 501 is provided with a circuit protection circuit 502 electrically connected to the composite connector 13. The circuit protection circuit 502 is electrically connected to a PWM variable frequency speed control box 503.

[0021] See Figure 1The drive shaft 8 and the propulsion fan blade 9 are detachably fixed together by bolts. This arrangement makes it easy to replace the propulsion fan blade 9 with the required size or to clean the propulsion fan blade 9 whenever needed.

[0022] See Figure 1 A vibration detection sensor 11 is installed at the end of the drive shaft 8. The vibration detection sensor 11 is electrically connected to the speed regulator 5 through a conductive rotating slip ring 12 set between the helical gear reducer 7 and the drive shaft 8. This setting allows the vibration detection sensor 11 to collect vibration information of the drive shaft 8 and the propulsion fan blade 9 in real time. After processing by the speed regulator 5, the information is fed back to the external control equipment via the composite connector 13. By monitoring the changes in vibration information, it is determined whether the device is operating normally, so as to detect and eliminate faults in time and ensure the smooth operation of production.

[0023] See Figure 1 The drive shaft 8 is provided with a sealing cover 10, which can provide waterproof protection for the vibration detection sensor 11 and improve the service life of the vibration detection sensor 11.

[0024] See Figure 1 A side-mounted fixing bracket 1 is fixedly installed on the side of the junction box 3, and a fixing seat 2 is provided at the bottom of the junction box 3 and the permanent magnet synchronous motor 6. This arrangement can use the side-mounted fixing bracket 1 and the fixing seat 2 to provide installation and positioning for this device, ensuring the stability of this device during operation.

[0025] See Figure 1 A connecting mounting bracket 14 is fixedly provided between the permanent magnet synchronous motor 6 and the fixed base 2. This arrangement allows the permanent magnet synchronous motor 6 and the fixed base 2 to be fixedly installed together through the connecting mounting bracket 14, providing a fixing function and ensuring the stability of the permanent magnet synchronous motor 6 during rotation.

[0026] See Figure 2 The PWM variable frequency speed control box 503 is electrically connected to the circuit detection circuit 504, the circuit protection circuit 502 is electrically connected to the circuit detection circuit 504, and the circuit detection circuit 504 is electrically connected to the composite connector 13. This setup allows the circuit detection circuit 504 to monitor various electrical signal parameters of the device and feed them back to the operator's control terminal as a fault indicator. The PWM variable frequency speed control box 503 can achieve stepless speed regulation of the permanent magnet synchronous motor 6, and the maximum speed is theoretically unlimited. It is widely used in aerospace, shipbuilding, medical and new energy vehicle fields, mainly due to its characteristic of not requiring electrical excitation, thus avoiding excitation loss and heat generation problems.

[0027] See Figure 2The sealed housing 501 is filled with insulating protective gas 505. This arrangement can improve the insulation performance of various electronic components in the speed regulator 5 by utilizing the insulating protective gas 505, thereby improving safety.

[0028] Working Principle: When using this device, first connect the composite connector 13 to the external control equipment. Input work commands and power from the external equipment via the composite connector 13. The power and electrical signals input via the composite connector 13 enter the speed regulator 5, which controls the permanent magnet synchronous motor 6 to start. The power output from the permanent magnet synchronous motor 6 is reduced in speed by the helical gear reducer 7, driving the drive shaft 8 to rotate. The drive shaft 8 drives the propulsion fan blades 9 to rotate, providing propulsion power. During this process, the operator can input work commands to the speed regulator 5 via the composite connector 13 from the external control equipment to adjust and control the output speed of the permanent magnet synchronous motor 6, thereby adjusting the speed of the propulsion fan blades 9 to meet the different propulsion speed requirements of various processes and achieve better energy-saving effects. Simultaneously, the vibration detection sensor 11 can collect vibration information from the drive shaft 8 and the propulsion fan blades 9 in real time. After processing by the speed regulator 5, the information is fed back to the external control equipment via the composite connector 13. By monitoring the changes in vibration, the operator can determine whether the device is operating normally, allowing for timely detection and troubleshooting to ensure smooth production.

[0029] In this specification, the terms "connection," "installation," "fixing," and "setting" are interpreted broadly. For example, "connection" can mean a fixed connection or an indirect connection via an intermediate component without affecting the relationship between components and the technical effect. It can also mean an integral connection or a partial connection. In such cases, those skilled in the art can understand the specific meaning of the above terms in this utility model or utility model according to the specific circumstances. In this utility model, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are mainly for better describing this utility model and its embodiments and are not intended to limit the indicated device, element, or component to having a specific orientation or to be constructed and operated in a specific orientation. Finally, it should be noted that when describing the position of each component and the matching relationship between them, this utility model usually uses one or a pair of components as examples. However, those skilled in the art should understand that such positions and matching relationships also apply to other components / other pairs of components.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A variable speed pusher with a fault detection function, characterized by: Includes a speed regulator (5), one end of which is provided with a sealing gasket (4), and the other side of which is provided with a junction box (3). The end of the junction box (3) is equipped with a composite connector (13) electrically connected to the speed regulator (5). The other end of the speed regulator (5) is electrically connected to a permanent magnet synchronous motor (6). The permanent magnet synchronous motor (6) is connected to the drive shaft (8) after being speed-changed by a helical gear reducer (7). Three equally spaced pusher fan blades (9) are installed on the circumference of the drive shaft (8). The speed regulator (5) includes a sealed housing (501), and a circuit protection circuit (502) electrically connected to the composite terminal block (13) is provided inside the sealed housing (501). The circuit protection circuit (502) is electrically connected to the PWM variable frequency speed control box (503).

2. The speed-adjustable pusher with the fault detection function according to claim 1, characterized in that: The drive shaft (8) and the propulsion fan blade (9) are detachably fixed together by bolts.

3. The adjustable speed thruster with fault detection function according to claim 1, characterized in that: A vibration detection sensor (11) is installed at the end of the drive shaft (8). The vibration detection sensor (11) is electrically connected to the speed regulator (5) through a conductive rotating slip ring (12) disposed between the helical gear reducer (7) and the drive shaft (8).

4. The adjustable speed thruster with fault detection function according to claim 1, characterized in that: The drive shaft (8) is provided with a sealing cover (10).

5. The adjustable speed thruster with fault detection function according to claim 1, characterized in that: The side of the junction box (3) is fixedly installed with a side mounting bracket (1), and the bottom of the junction box (3) and the permanent magnet synchronous motor (6) are provided with a mounting base (2).

6. The adjustable speed thruster with fault detection function according to claim 5, characterized in that: A connecting mounting bracket (14) is fixedly provided between the permanent magnet synchronous motor (6) and the fixed base (2).

7. The adjustable speed thruster with fault detection function according to claim 1, characterized in that: The PWM variable frequency speed control box (503) is electrically connected to the circuit detection circuit (504), the circuit protection circuit (502) is electrically connected to the circuit detection circuit (504), and the circuit detection circuit (504) is electrically connected to the composite terminal block (13).

8. The adjustable speed thruster with fault detection function according to claim 1, characterized in that: The sealed housing (501) is filled with insulating protective gas (505).

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