Direct-driven variable-frequency permanent magnet motor of screw pump

A permanent magnet motor and screw pump technology, applied in pumps, pump components, electromechanical devices, etc., can solve problems affecting normal operation, permanent magnet direct drive variable frequency motor magnetic interference, etc., and achieve the effect of improving stability

Pending Publication Date: 2021-10-29
杨成兴
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The permanent magnet direct drive variable frequency motor mainly refers to that when the motor drives the load, it does not need to pass through the transmission device, and directly works with the load. Compared with the traditional motor, it will generate more heat during the work process. With the accumulation of heat, it will cause An increase in temperature will interfere with the magnetism of the permanent magnet direct drive variable frequency motor, thereby affecting its normal operation

Method used

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  • Direct-driven variable-frequency permanent magnet motor of screw pump
  • Direct-driven variable-frequency permanent magnet motor of screw pump
  • Direct-driven variable-frequency permanent magnet motor of screw pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Such as figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 with Image 6 As shown, the screw pump direct-drive variable frequency permanent magnet motor includes a base 1, the base 1 is a convex structure, four sets of connecting holes 2 are opened at the four corners of the top of the base 1, and the connecting holes 2 are set on the lower surface of the upper part of the base 1. In the upper four corners, there are three sets of mounting holes on the top of the base 1. The mounting holes are set on the surface of the upper part of the base 1 with a higher height. The two sets of mounting holes are symmetrically set on both sides of the center of the top of the base 1, and the other set of mounting holes are close to the base. 1 The top edge is set, each set of mounting holes includes two sets of mounting screw holes 3, the mounting screw holes 3 are set through the base 1, and the top of the base 1 is equipped with mounting components, the mounting components...

Embodiment 2

[0049] Embodiment 2 is a further improvement to Embodiment 1.

[0050] Such as figure 2 , image 3 , Figure 7 , Figure 8 , Figure 9 with Figure 10 as shown,

[0051] The top of the motor base 1 is symmetrically provided with two sets of penetrating moment grooves 29, and the top of the base 1 is matched with a positioning moment groove 30, and a protective component is arranged on the penetrating moment groove 29 and the positioning moment groove 30. The protective component includes a positioning screw hole 31, a positioning Plate 32, protective frame 33, positioning hole 34, positioning screw 35, chute 36, slide block 37, protective baffle 38, heat dissipation groove 39 and rectangular through groove 40; positioning screw hole 31 is arranged on the center of the inner wall of penetrating moment groove 29, The positioning plate 32 is plugged into the through moment groove 29 and the positioning moment groove 30, the top of the positioning plate 32 is flush with the...

Embodiment 3

[0053] Embodiment 3 is a further improvement to Embodiment 2.

[0054] Such as figure 1 , Figure 8 , Figure 9 , Figure 10 with Figure 11 As shown, the inside of the protective frame 33 is provided with a cooling assembly, and the cooling assembly includes a circular through hole 41, a fan 42, a connecting rod 43, a bar 44, a connecting screw 45, a locking hole 46, a matching locking hole 47, a locking Rod, circular arc plate 48, installation arc groove 49, circulating water pipe 50, connecting pipe 51, water inlet pipe 52 and water outlet pipe 53; circular through hole 41 is arranged at the center of the top of protective frame 33, horizontal bar 44 is fixedly set on connecting rod 43, the fan 42 rotates at the bottom of the connecting rod 43, the connecting screw 45 is threaded to connect the horizontal bar 44 and the protective frame 33, the locking hole 46 runs through the center of the side of the horizontal bar 44, and the locking hole 47 is set through the connec...

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PUM

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Abstract

The invention discloses a direct-driven variable-frequency permanent magnet motor of a screw pump. The direct-driven variable-frequency permanent magnet motor comprises a base, two sets of through rectangular grooves are symmetrically formed in the top end of the motor base, a positioning rectangular groove is formed in the top end of the base in a matched manner, and protection assemblies are arranged on the through rectangular grooves and the positioning rectangular groove; each protection assembly comprises a positioning screw hole, a positioning plate, a protection frame, a positioning hole, a positioning screw, a sliding groove, a sliding block, a protection baffle, a heat dissipation groove and a rectangular through groove; and a cooling assembly is arranged in each protection frame, under the combined action of the protection frames and the protection baffles, when a device is in a poor external environment condition, the internal direct-driven variable-frequency permanent magnet motor can be protected, and the situation that the direct-driven variable-frequency permanent magnet motor is damaged by external objects and work of the direct-driven variable-frequency permanent magnet motor is affected is avoided, so that the service life of the direct-driven variable-frequency permanent magnet motor is prolonged.

Description

technical field [0001] The invention relates to the technical field of screw pumps, in particular to a direct-drive variable-frequency permanent magnet motor of a screw pump. Background technique [0002] The screw pump belongs to the rotor type volumetric pump, which relies on the mutual engagement of the screw and the bush to produce volume changes in the suction chamber and the discharge chamber to transport the liquid. It is an internal meshing hermetic screw pump, the main working parts are composed of a bush (stator) with a double-ended helical cavity and a single-ended helical screw (rotor) meshing with it in the stator cavity. When the input shaft drives the rotor through the universal joint to make a planetary rotation around the center of the stator, the stator and rotor are continuously meshed to form a sealed cavity. To the extruding end, the medium sucked into the airtight cavity flows through the stator without being stirred and damaged. [0003] The screw pu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04C2/107F04C15/00H02K5/04
CPCF04C2/107F04C15/00H02K5/04
Inventor 不公告发明人
Owner 杨成兴
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