CN210839139U

CN210839139U - Section bar permanent magnet motor shell

Info

Publication number: CN210839139U
Application number: CN201921973770.9U
Authority: CN
Inventors: 周峰; 周骏
Original assignee: Yixing Rongxing Casting Co ltd
Current assignee: Yixing Rongxing Casting Co ltd
Priority date: 2019-11-15
Filing date: 2019-11-15
Publication date: 2020-06-23
Anticipated expiration: 2029-11-15

Abstract

The utility model discloses a section bar permanent magnet motor shell, its structure includes the casing and sets up A end cover and the B end cover at the casing both ends, the casing is the section bar casing, casing both ends and A end cover, two interference fit location portions are established respectively to B end cover junction, by the fitting surface at casing both ends, and the fitting surface of A end cover and B end cover tip is constituteed, interference fit location portion establishes transversely, radial sealed adhesive tape groove, the cross-section in adhesive tape groove is the square, casing both ends and A end cover, B end cover junction is through placing the sealed adhesive tape mutual sealing connection in horizontal sealed adhesive tape groove and radial sealed adhesive tape groove. The utility model has the advantages that: the end covers and the middle section material casing which are cast at the two ends at low pressure do not have the conditions of looseness and water leakage, the production efficiency is greatly improved, the production cost is reduced, friction welding is not needed at the two ends of the casing, the manufacturing process is simplified, the structural stability is improved, and the permanent magnet motor casing price is favorably reduced.

Description

Section bar permanent magnet motor shell

Technical Field

The utility model relates to a section bar permanent-magnet machine shell.

Background

The permanent magnet motor is a motor using a permanent magnet, does not need excitation, and can be roughly divided into: permanent magnet direct current motors (with commutators), brushless direct current motors (direct current motor characteristics, electronic commutation), permanent magnet synchronous motors (alternating current motor characteristics), etc.

The permanent magnet motor shell in the prior art is produced by casting, the structure is unstable, the situation of looseness and water leakage exists, the production efficiency is low, an expensive metal mold low-pressure mold and a runner sand core mold are needed during casting, the casting process is complex, the production cost is high, and the permanent magnet motor shell is expensive.

When the end covers at the two ends of the shell of the permanent magnet motor in the prior art are installed, friction welding needs to be carried out on the two ends firstly, the friction welding robot is high in cost, the welding depth is not enough, the process is complex, and two processing and blocking materials need to be added.

SUMMERY OF THE UTILITY MODEL

The utility model provides a section bar permanent-magnet machine shell, its purpose aims at overcoming the above-mentioned not enough that prior art exists, realizes simplifying manufacturing process, improves structural stability, reduction in production cost.

The technical solution of the utility model is as follows: the shell of the section bar permanent magnet motor structurally comprises a shell, an end cover A and an end cover B, wherein the end cover A and the end cover B are arranged at two ends of the shell, two interference fit positioning parts are arranged at the joints of the two ends of the shell, the end cover A and the end cover B respectively, the interference fit positioning parts are composed of matching surfaces at two ends of the shell and matching surfaces at end parts of the end cover A and the end cover B inserted into two ends of the shell, the outer diameters of the matching surfaces of the end parts of the end cover A and the end part of the end cover B inserted into two ends of the shell are 0.4mm larger than the inner diameter of the matching surfaces at two ends of the shell, the two interference fit positioning parts at the joint of the shell and the end cover A and the two interference fit positioning parts at the joint of the shell and the end cover B are respectively provided with a transverse sealant strip groove and a radial sealant strip groove, the cross sections of the, The joint of the end cover B is mutually connected in a sealing way through sealing rubber strips placed in the transverse sealing rubber strip groove and the radial sealing rubber strip groove.

Preferably, the outer diameter of one matching surface of the end part of the A end cover inserted into one end of the shell is 215.4mm, the outer diameter of the other matching surface is 182.4mm, and the outer diameter of one matching surface of the end part of the B end cover inserted into the other end of the shell is 215.4mm, and the outer diameter of the other matching surface is 184.4 mm.

Preferably, the machine shell is made of extruded 6063 aluminum alloy.

The utility model has the advantages that: the end covers and the middle section material casing which are cast at the two ends at low pressure do not have the conditions of looseness and water leakage, the production efficiency is greatly improved, the production cost is reduced, friction welding is not needed at the two ends of the casing, the manufacturing process is simplified, the structural stability is improved, and the permanent magnet motor casing price is favorably reduced.

Drawings

Fig. 1 is a schematic view of the three-dimensional structure of the shell of the permanent magnet motor made of the sectional material of the present invention.

Fig. 2 is a schematic view of the structure of the section permanent magnet motor housing of the present invention.

Fig. 3 is a left side view of fig. 2.

Fig. 4 is a right side view of fig. 2.

Fig. 5 is a sectional view taken along line F-F of fig. 3.

Fig. 6 is a sectional view taken along line D-D of fig. 2.

Fig. 7 is a sectional view taken along line G-G of fig. 2.

Fig. 8 is a sectional view taken along line H-H of fig. 2.

Fig. 9 is a sectional view taken along line E-E of fig. 2.

Fig. 10 is a sectional view taken along line J-J of fig. 9.

Fig. 10-1 is an enlarged schematic view of the L portion of fig. 10.

Fig. 10-2 is an enlarged schematic view of the portion M of fig. 10.

Fig. 11 is a sectional view taken along line K-K of fig. 10.

In the figure, 1 is a machine shell, 2 is an end cover A, 3 is an end cover B, 4 is an interference fit positioning part, 5 is a transverse sealing rubber strip groove, and 6 is a radial sealing rubber strip groove.

Detailed Description

The present invention will be described in further detail with reference to examples and embodiments.

As shown in fig. 1-11, the profile permanent magnet motor casing comprises a casing 1 and an end cover a 2 and an end cover B3 arranged at two ends of the casing 1, the casing 1 is a profile casing, two interference fit positioning parts 4 are respectively arranged at the joints of the two ends of the casing 1 and the end cover a 2 and the end cover B3, the interference fit positioning parts 4 are composed of the matching surfaces at the two ends of the casing 1 and the matching surfaces of the end parts of the end cover a 2 and the end cover B3 inserted into the two ends of the casing 1, the outer diameters of the matching surfaces of the end parts of the end cover a 2 and the end cover B3 inserted into the two ends of the casing 1 are 0.4mm larger than the inner diameters of the matching surfaces at the two ends of the casing 1, two interference fit positioning parts 4 at the joints of the casing 1 and the end cover a 2 and two interference fit positioning parts 4 at the joints of the casing 1 and the end cover B3 are respectively provided with a transverse sealing strip groove 5 and a radial sealing strip groove 6, the cross sections of the transverse sealing, the joints of the two ends of the machine shell 1 and the end covers A2 and B3 are mutually connected in a sealing way through sealing rubber strips placed in the transverse sealing rubber strip groove 5 and the radial sealing rubber strip groove 6.

The outer diameter of one matching surface of the end part of the end cover A2 inserted into one end of the machine shell 1 is 215.4mm, the outer diameter of the other matching surface is 182.4mm, the outer diameter of one matching surface of the end part of the end cover B3 inserted into the other end of the machine shell 1 is 215.4mm, and the outer diameter of the other matching surface is 184.4 mm.

The machine shell 1 is 6063 aluminum alloy and is formed by extrusion in a 12000t extruder through an extrusion die.

The end cover A2 and the end cover B3 are formed by low-pressure casting.

According to the structure, when the sealing device is installed, the machine shell 1 is firstly heated to expand, then sealing rubber strips are put into the transverse sealing rubber strip groove 5 and the radial sealing rubber strip groove 6 of the machine shell 1, and then the end cover A2 and the end cover B3 are pressed into the two ends of the machine shell 1.

All the above components are prior art, and those skilled in the art can use any model and existing design that can implement their corresponding functions.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many modifications and improvements can be made without departing from the inventive concept, and all of them belong to the protection scope of the present invention.

Claims

1. A section bar permanent magnet motor shell comprises a shell (1) and an A end cover (2) and a B end cover (3) which are arranged at two ends of the shell (1), and is characterized in that the shell (1) is a section bar shell, two interference fit positioning parts (4) are respectively arranged at the joints of the two ends of the shell (1) and the A end cover (2) and the B end cover (3), the interference fit positioning parts (4) are formed by matching surfaces at the two ends of the shell (1) and matching surfaces of end parts of the A end cover (2) and the B end cover (3) which are inserted into the two ends of the shell (1), the outer diameter of the matching surface of the end part of the A end cover (2) and the B end cover (3) which are inserted into the two ends of the shell (1) is 0.4mm larger than the inner diameter of the matching surfaces at the two ends of the shell (1), the two interference fit positioning parts (4) at the joints of the shell (1) and the A end cover (2) and the two interference fit positioning parts (4) (5) And the cross sections of the transverse sealant strip groove (5) and the radial sealant strip groove (6) are 4 x 4mm squares, and the joints of the two ends of the casing (1) and the end covers A (2) and B (3) are mutually connected in a sealing manner through sealant strips placed in the transverse sealant strip groove (5) and the radial sealant strip groove (6).

2. A profile permanent magnet motor housing according to claim 1, characterised in that the end part of the end cap (2) a inserted into one end of the housing (1) has one of the mating surfaces with an outer diameter of 215.4mm and the other mating surface with an outer diameter of 182.4mm, and the end part of the end cap (3) B inserted into the other end of the housing (1) has one of the mating surfaces with an outer diameter of 215.4mm and the other mating surface with an outer diameter of 184.4 mm.

3. A profile permanent magnet motor housing according to claim 1 or 2, characterized in that the housing (1) is an extruded 6063 aluminum alloy.