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Pump axial force online measuring device and method

A technology for measuring device and axial force, which is applied to parts, pumps, pump components, etc. of pumping devices used for elastic fluids, can solve the problems of inaccurately knowing the axial force of pumps, etc., and maximize economic benefits and improve Rigidity, high precision effect

Active Publication Date: 2019-03-05
CHANGSHA CANON GENERAL PUMPS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a pump designer, it is impossible to accurately know the difference between the calculated value of the axial force of the pump and the actual value

Method used

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  • Pump axial force online measuring device and method

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Embodiment Construction

[0019] The present invention will be further described below by specific examples.

[0020] A pump axial force online measuring device, as attached figure 1 As shown, including the main shaft 1, the main shaft 1 is equipped with a bearing inner sleeve 8, and the bearing inner sleeve 8 is also covered with a bearing outer sleeve 3. There is a thrust bearing between the bearing inner sleeve 8 and the bearing outer sleeve 3, and the thrust bearing can use angular contact balls. The bearing 9 and the sensor are installed in the bearing body 12, and are fastened on the bearing outer shell by screws 5. A cylindrical pin 10 is arranged on one side of the sensor, and a non-porous end cover 6 is arranged between the sensors. Parallel pins and blank end caps prevent radial and axial movement of the sensor.

[0021] The transmitter 7 can also be set, the transmitter is connected to the sensor, the other end of the transmitter is connected to the display and the host, the host automatica...

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Abstract

The invention discloses an online measuring device for pump axial force. The online measuring device comprises a spindle. A bearing inner sleeve is mounted on the spindle. A bearing outer sleeve sleeves the bearing inner sleeve. A thrust bearing is arranged between the bearing inner sleeve and the bearing outer sleeve. A sensor is mounted in a bearing body and fastened to the bearing outer sleeve through a screw. A cylindrical pin is arranged on one side of the sensor. The other side of the sensor is provided with a hole-free end cover. The cylindrical pin and the hole-free end cover can prevent the sensor from having radial and axial movements. The invention further discloses an online measuring method for pump axial force. The online measuring device and method has the advantages that the signal capturing time interval of the device and method is 0.05 second, the device and method is high in precision and high in sensitivity, online measuring of the pump axial force can be performed accurately, the rigidity of a rotor part can be increased, the service life of a pump can be prolonged, and the economic benefits of the pump can be maximized.

Description

technical field [0001] The invention relates to the field of centrifugal pumps, in particular to an online measuring device and method for pump axial force. Background technique [0002] At present, there are only approximate calculation formulas for the calculation of the axial force of the pump. Whether it is a single-stage pump, self-balancing segmental multi-stage pump, parallel pump, split pump, split multi-stage pump and other pump products, after the manufacture is completed, from zero flow to There is no accurate measuring device for the axial force of the pump from the point to the point of large flow. As a pump designer, we cannot accurately know the difference between the calculated value of the axial force of the pump and the actual value. At the same time, the flow-axial force magnitude and direction curve cannot be automatically generated from the start-up, operation, change of working conditions, and stop of the pump. The size of the axial force of the pump ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D29/04F04D29/046F04D29/049F04D29/62
CPCF04D29/04F04D29/0462F04D29/049F04D29/62
Inventor 龚贤辉张幸
Owner CHANGSHA CANON GENERAL PUMPS
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