CN-224200791-U - Water pump rotation speed monitoring device

CN224200791UCN 224200791 UCN224200791 UCN 224200791UCN-224200791-U

Abstract

The utility model provides a water pump rotating speed monitoring device, which belongs to the technical field of water pump monitoring and comprises a rotating wheel shell, a rotating speed monitoring assembly and a transmission bracket, wherein the rotating wheel shell is cylindrical, a plurality of ventilation grooves which are distributed in the radial direction are formed in the outer wall of the rotating wheel shell, the transmission bracket is fixedly arranged at the bottom of the rotating wheel shell, a bearing mounting seat is formed in the side wall of the transmission bracket, the rotating speed monitoring assembly is arranged on the transmission bracket and can detect the rotating speed of the rotating wheel shell, the rotating speed monitoring assembly comprises a sensor body and a magnetic positioning ring, the sensor body is fixedly arranged on the transmission bracket, the magnetic positioning ring is fixedly arranged on the peripheral surface of the rotating wheel shell, and the magnetic positioning ring is correspondingly arranged with the sensor body.

Inventors

WANG XINGYE
SU YUANQING

Assignees

云南盛尚机电工程有限公司

Dates

Publication Date: 20260505
Application Date: 20250409

Claims (10)

1. A water pump rotating speed monitoring device is characterized by comprising a rotating wheel shell, a rotating speed monitoring assembly and a transmission bracket, wherein the rotating wheel shell is cylindrical, a plurality of ventilation grooves which are distributed in the radial direction are formed in the outer wall of the rotating wheel shell, the transmission bracket is fixedly arranged at the bottom of the rotating wheel shell, a bearing mounting seat is formed in the side wall of the transmission bracket, the rotating speed monitoring assembly is arranged on the transmission bracket and can detect the rotating speed of the rotating wheel shell, the rotating speed monitoring assembly comprises a sensor body and a magnetic positioning ring, the sensor body is fixedly arranged on the transmission bracket, the magnetic positioning ring is fixedly arranged on the outer peripheral surface of the rotating wheel shell, and the magnetic positioning ring is correspondingly arranged with the sensor body.
2. The water pump rotating speed monitoring device according to claim 1, wherein the transmission support comprises a bottom plate and side plates, the bottom plate is rectangular and flat, the side plates are vertically fixed on one side of the bottom plate, the thickness of each side plate is 5-10 mm, bearing mounting grooves are formed in the surfaces of the side plates, the cross sections of the bearing mounting grooves are U-shaped, and bearing seats are embedded in the bearing mounting grooves.
3. The water pump rotating speed monitoring device according to claim 2, wherein the magnetic positioning ring is of a circular ring structure, the outer diameter of the magnetic positioning ring is 20-50 mm, the inner diameter of the magnetic positioning ring is matched with the shaft diameter of the rotating wheel shell, and the magnetic positioning ring is made of neodymium iron boron magnetic materials.
4. The water pump rotation speed monitoring device according to claim 3, wherein the magnetic positioning ring is formed by rotationally connecting two semicircular ring structures through a hinge mechanism into a circular ring structure, and is detachably connected to the outer side wall of the rotor shell.
5. The water pump rotation speed monitoring device according to claim 4, wherein triangular protrusions are arranged on the inner side wall of the magnetic positioning ring, corresponding triangular depressions are arranged on the corresponding positions of the outer side wall of the rotating wheel shell, the cross sections of the triangular protrusions are right-angled triangles, the right angles are far away from the front side of the rotating direction of the rotating wheel shell, the cross sections of the triangular depressions are right-angled triangles, and the right angles are located on the rear side of the rotating direction of the rotating wheel shell.
6. The water pump rotating speed monitoring device according to claim 5, wherein the sensor body is a Hall sensor, the mounting seat of the sensor body is L-shaped, one end of the L-shaped mounting seat is fixedly connected to the side plate of the transmission support, the other end of the L-shaped mounting seat is fixedly connected with the Hall sensor, and the distance between the Hall sensor and the magnetic positioning ring is controlled within the range of 1-3 mm.
7. The water pump speed monitoring device according to claim 6, wherein the ventilation grooves of the rotor housing are rectangular grooves, each ventilation groove has a groove width of 5-10 mm, and a groove pitch of 15-25 mm.
8. The water pump rotation speed monitoring device according to claim 7, wherein the outer wall of the runner housing is provided with radial protrusions, and the height of the protrusions is 2-5 mm.
9. The water pump rotation speed monitoring device according to claim 8, wherein the inner wall of the runner housing is provided with a spiral diversion trench.
10. The water pump rotation speed monitoring device according to claim 9, wherein the number of the radial protrusions is 3-6, and the protrusions are equidistantly distributed on the outer wall of the runner housing.

Description

Water pump rotation speed monitoring device Technical Field The utility model belongs to the technical field of water pump monitoring, and particularly relates to a water pump rotating speed monitoring device. Background In the operation process of the water pump, the rotation speed monitoring is one of key technologies for ensuring the efficient and safe operation of the water pump. Conventional methods for monitoring the rotational speed of a water pump generally rely on external sensors or complex mechanical structures, which have some limitations in practical applications. For example, the mounting location and manner of the external sensor may be limited by space, resulting in a complex mounting process and being susceptible to environmental disturbances, affecting the accuracy of the monitoring. In addition, when the traditional monitoring device runs at a high speed or the load changes, the problem that the monitoring signal is unstable or lost easily occurs, and the requirement of high-precision monitoring is difficult to meet. Conventional speed monitoring devices typically employ mechanical contact sensors or photoelectric sensors. Mechanical contact sensors suffer from reduced accuracy after long-term use due to mechanical wear and require periodic maintenance. The photoelectric sensor has higher precision, but has higher requirements on the installation environment, and is easily influenced by pollutants such as dust, greasy dirt and the like, so that signals are unstable. In addition, these sensors require precise alignment during installation, increasing installation difficulty and maintenance costs. In the operation process of the water pump, due to the influence of hydrodynamic characteristics and mechanical vibration, the phenomenon of displacement or slipping of monitoring components easily occurs in the traditional monitoring device, so that the monitoring data is inaccurate. In particular, during start-up and stop, the action of inertial force may cause relative displacement of the monitoring component, further affecting the reliability of the monitoring result. In addition, heat and vibration generated during operation of the water pump can also adversely affect the stability and life of the monitoring device. Disclosure of utility model In view of the above, the present utility model provides a water pump rotation speed monitoring device, which can solve the problem that an external sensor is not easy to install, and reduce detection errors caused by external interference. The utility model is realized in the following way: The utility model provides a water pump rotating speed monitoring device which comprises a rotating wheel shell, a rotating speed monitoring assembly and a transmission bracket, wherein the rotating wheel shell is cylindrical, a plurality of ventilation grooves which are distributed in the radial direction are formed in the outer wall of the rotating wheel shell, the transmission bracket is fixedly arranged at the bottom of the rotating wheel shell, a bearing mounting seat is formed in the side wall of the transmission bracket, the rotating speed monitoring assembly is arranged on the transmission bracket and can detect the rotating speed of the rotating wheel shell, the rotating speed monitoring assembly comprises a sensor body and a magnetic positioning ring, the sensor body is fixedly arranged on the transmission bracket, the magnetic positioning ring is fixedly arranged on the outer peripheral surface of the rotating wheel shell, and the magnetic positioning ring is correspondingly arranged with the sensor body. The water pump rotating speed monitoring device has the technical effects that the rotating speed monitoring assembly is arranged on the transmission support through the plurality of radial ventilation grooves arranged on the outer wall of the rotating wheel shell, so that the accurate monitoring of the rotating speed of the water pump is realized. The sensor body in the rotation speed monitoring assembly is precisely matched with the magnetic positioning ring, so that the rotation speed of the rotating wheel shell can be accurately captured in real time, the monitoring precision and reliability of the running state of the water pump are improved, and effective technical support is provided for safe running of the water pump. On the basis of the technical scheme, the water pump rotating speed monitoring device can be further improved as follows: The transmission support comprises a bottom plate and side plates, wherein the bottom plate is rectangular and flat, the side plates are vertically fixed on one side of the bottom plate, the thickness of each side plate is 5-10 mm, bearing mounting grooves are formed in the surfaces of the side plates, the cross sections of the bearing mounting grooves are U-shaped, and bearing seats are embedded in the grooves. The improved scheme has the beneficial effects that the transmission support adopts the integrated str