Tool shaft assembly suitable for various motor models

By designing tool shaft assemblies suitable for various motor models, the high cost and long cycle time issues during the assembly of multiple motor models were solved, achieving cost savings and cycle time reduction, while ensuring the rationality and convenience of motor rotor assembly.

CN223693775UActive Publication Date: 2025-12-19VEM CHINA CO LTD
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Patent Information

Application Number
CN202423295606.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-31
Publication Date
2025-12-19
Estimated Expiration
2034-12-31

AI Technical Summary

Technical Problem

In the existing technology, when assembling the rotor of a motor model that requires a tool shaft for a special motor without a product shaft, multiple special tool shafts need to be designed, resulting in high manufacturing costs and long manufacturing cycles.

Method used

Design a tool shaft assembly suitable for multiple motor models, including a shaft body, a fixed flange, a magnetic yoke, and a fastener. By replacing the magnetic yoke and extending the magnetic yoke, it can be adapted to the assembly of motor rotors of different specifications. The shaft body structure is designed according to the parameters of the largest model motor, and a single shaft body is used to meet the needs of multiple motors.

Benefits of technology

This approach achieves both reduced tooling costs and shorter manufacturing cycles, while also ensuring convenient assembly and disassembly of the yoke and extended yoke, and guaranteeing the rationality of the shaft structure.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of motor rotor magnetic pole installation, in particular to a tool shaft assembly suitable for various motor models, which comprises a shaft body. A fixing flange a, a fixing flange b and a magnet yoke; the fixed flange a sleeves the shaft body in a matched manner; the fixed flange b is mounted on the shaft body in a matched and sleeving manner; the flange surface of the fixed flange b faces the fixed flange a; the magnet yoke is arranged on the shaft body in a matched and sleeved mode and located between the fixing flange a and the fixing flange b, and the magnet yoke is detachably connected with the fixing flange a and the fixing flange b. According to the tool shaft assembly suitable for various motor models, the shaft body is shared, and the magnet yoke is replaced and lengthened according to requirements so that the tool shaft assembly can be assembled with various motor rotor magnetic poles of different specifications and models to facilitate type tests, tool cost is saved, and meanwhile the product manufacturing period can be shortened; and the magnet yoke and the lengthened magnet yoke are convenient to disassemble and assemble.
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Description

TECHNICAL FIELD

[0001] The utility model relates to motor rotor magnetic pole installation technical field, concretely relates to a tool shaft subassembly suitable for various motor models belongs to mechanical transmission component structure technical field. BACKGROUND

[0002] Some special structure motors have no product shaft, need to install magnetic pole by tool shaft to complete rotor assembly and cooperate subsequent factory type test, and this kind of situation exists on multiple motor models, if each model needs to design and manufacture a special tool shaft, greatly improves product manufacturing cost, and also can improve overall product manufacturing period. UTILITY MODEL CONTENTS

[0003] The utility model aims at the problems in the background art, and provides a tool shaft subassembly suitable for various motor models.

[0004] The utility model discloses a tool shaft subassembly suitable for various motor models, which comprises a shaft body.

[0005] A fixed flange a is sleeved and installed on the shaft body.

[0006] A fixed flange b is sleeved and installed on the shaft body, and the flange surface of the fixed flange b faces the fixed flange a.

[0007] A magnetic yoke is sleeved on the shaft body and located between the fixed flange a and the fixed flange b, and the magnetic yoke is detachably connected to the fixed flange a and the fixed flange b.

[0008] Preferably, the tool shaft subassembly further comprises a lengthening magnetic yoke a, and the lengthening magnetic yoke a is detachably connected to one end of the magnetic yoke.

[0009] Preferably, the tool shaft subassembly further comprises a plurality of fastening members a.

[0010] The fastening members a are sleeved through the through holes a on the lengthening magnetic yoke a and screwed into the threaded blind holes a on the magnetic yoke to form fixed structures a, and the fastening members a, the through holes a and the threaded blind holes a are in one-to-one correspondence.

[0011] Preferably, the tool shaft subassembly further comprises a lengthening magnetic yoke b, and the lengthening magnetic yoke b is detachably connected to the other end of the magnetic yoke.

[0012] Preferably, the tool shaft subassembly further comprises a plurality of fastening members b.

[0013] The fastening members b are sleeved through the through holes b on the lengthening magnetic yoke a and screwed into the threaded blind holes b on the magnetic yoke to form fixed structures b, and the fastening members b, the through holes b and the threaded blind holes b are in one-to-one correspondence.

[0014] Preferably, the tool shaft subassembly further comprises a plurality of fastening members c.

[0015] The fixing flange a is fixed on the magnetic yoke through the fixing structure c.

[0016] Preferably, the tool shaft assembly further comprises a plurality of fasteners d.

[0017] The fixing flange b is fixed on the magnetic yoke through the fixing structure d.

[0018] Compared with the prior art, the above technical scheme of the utility model has the following beneficial technical effects:

[0019] The tool shaft assembly suitable for various motor types provided by the utility model saves tool cost and reduces product manufacturing period, and the magnetic yoke and the lengthened magnetic yoke are convenient to disassemble and assemble. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 The structure schematic view of an embodiment of the utility model is shown.

[0021] Figure 2 The structure schematic view of the magnetic yoke is shown. Figure 1 The structure schematic view of the magnetic yoke is shown.

[0022] Figure 3 The structure schematic view of the lengthened magnetic yoke a is shown. Figure 1 The structure schematic view of the lengthened magnetic yoke a is shown.

[0023] Figure 4 The structure schematic view of the fixing flange a is shown. Figure 1 The structure schematic view of the fixing flange a is shown.

[0024] Figure 5 The structure schematic view of the magnetic yoke is shown. Figure 1 The structure schematic view of the magnetic yoke is shown.

[0025] Figure 6 The structure schematic view of the lengthened magnetic yoke b is shown. Figure 1 The structure schematic view of the lengthened magnetic yoke b is shown.

[0026] Figure 7 The structure schematic view of the fixing flange b is shown. Figure 1 The structure schematic view of the fixing flange b is shown.

[0027] Reference signs: 1, shaft body; 2, lengthening yoke a; 3, fastening part a; 4, fixed flange a; 5, fastening part c; 6, yoke; 7, fastening part d; 8, lengthening yoke b; 9, fastening part b; 10, fixed flange b. DETAILED DESCRIPTION

[0028] Example one

[0029] As shown in Figures 1-2 , Figures 4-5 and Figure 7 , the utility model provides a kind of tool shaft assembly suitable for multiple motor models, including shaft body 1, fixed flange a 4 and fixed flange b 10;

[0030] Shaft body 1 is metal forging, and it can be processed according to the required size according to the structure shown in the figure, one end of shaft body 1 has flange structure to facilitate installation with external equipment, and the other end of shaft body 1 has bearing mounting position;

[0031] Fixed flange a 4 and fixed flange b 10 are installed on shaft body 1 in cooperation with sleeve; The flange surface of fixed flange b 10 faces fixed flange a 4;Wherein, fixed flange a 4 and fixed flange b 10 are in interference fit with shaft body 1, fixed flange a 4 and fixed flange b 10 need to be heated before installation, and then they are in interference fit on shaft body 1, after fixed flange a 4 and fixed flange b 10 are cooled, the two form stable connection, for transmitting torque, fixed flange a 4 and fixed flange b 10 are metal forgings;

[0032] Yoke 6 is a welded part, yoke 6 is fitted on shaft body 1, yoke 6 and shaft body 1 are gap fit, which facilitates the disassembly of yoke 6 and improves efficiency;Yoke 6 is located between fixed flange a 4 and fixed flange b 10, and yoke 6 can detachably connect fixed flange a 4 and fixed flange b 10.

[0033] Example two

[0034] As shown in Figure 1 , Figure 3 and Figure 6 , the utility model provides a kind of tool shaft assembly suitable for multiple motor models, compared with example one, the embodiment further includes lengthening yoke a 2, fastening part a 3, lengthening yoke b 8 and fastening part b 9;Fastening part a 3 and fastening part b 9 are provided with multiple, and are bolts;

[0035] The lengthening magnetic yoke a2 is a metal forging part, and the lengthening magnetic yoke a2 is detachably connected to one end of the magnetic yoke 6; wherein the fastening part a3 is matched with the through hole a on the lengthening magnetic yoke a2 and is screwed into the threaded blind hole a on the magnetic yoke 6 to form a fixed structure a, so as to realize the detachable connection of the lengthening magnetic yoke a2 and the magnetic yoke 6; the fastening part a3, the through hole a and the threaded blind hole a are one-to-one corresponding, and further, the through hole a is a counterbore.

[0036] The lengthening magnetic yoke b8 is a metal forging part, and the lengthening magnetic yoke b8 is detachably connected to the other end of the magnetic yoke 6; wherein the fastening part b9 is matched with the through hole b on the lengthening magnetic yoke a2 and is screwed into the threaded blind hole b on the magnetic yoke 6 to form a fixed structure b, so as to realize the detachable connection of the lengthening magnetic yoke b8 and the magnetic yoke 6; the fastening part b9, the through hole b and the threaded blind hole b are one-to-one corresponding, and further, the through hole b is a counterbore.

[0037] Embodiment two

[0038] As shown in Figure 1 , Figure 4 and Figure 7 , the utility model provides a kind of tool shaft assembly suitable for multiple motor models, compared with embodiment one, this embodiment further include fastening part c5 and fastening part d7;Fastening part c5 and fastening part d7 are all equipped with multiple, and are bolt;

[0039] The fastening part c5 is matched with the through hole c on the fixed flange a4 and is screwed into the threaded blind hole c on the magnetic yoke 6 to form a fixed structure c, so as to realize the detachable installation of the fixed flange a4 and the magnetic yoke 6;Fastening part c5, through hole c and threaded blind hole c are one-to-one corresponding, and further, the through hole c is a counterbore.

[0040] The fastening part d7 is matched with the through hole d on the fixed flange b10 and is screwed into the threaded blind hole d on the magnetic yoke 6 to form a fixed structure d, so as to realize the detachable installation of the fixed flange b10 and the magnetic yoke 6;Fastening part d7, through hole d and threaded blind hole d are one-to-one corresponding, and further, the through hole d is a counterbore.

[0041] In the utility model, the fixed flange b10 is heated and is hot-jacketed to the shaft body 1;Magnetic yoke 6 is installed to fixed flange b10 end face, using fastening part d7 to fix fixed flange b10 and magnetic yoke 6.Recheck the coaxial degree of magnetic yoke 6 and shaft body 1, guarantee the installation of subsequent fixed fixed flange a4;Fixed flange a4 is heated and is jacketed to the shaft body 1, and fastening part c5 is used to connect magnetic yoke 6 under hot state;Lengthening magnetic yoke a and lengthening magnetic yoke b are installed, and fastening part a and fastening part b are fixed, and the utility model has the advantages of simple structure, convenient installation and the like.

[0042] Wherein, the shaft body 1 is overall machined on gold processing equipment according to bearing support shaft neck alignment and according to corresponding machine type magnetic pole installation demand to process the outer diameter of the magnetic yoke 6, the lengthening magnetic yoke a and the lengthening magnetic yoke b.

[0043] The embodiments of the present application are described in detail above with reference to the drawings, but the present application is not limited thereto, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present application.

Claims

1. A tool shaft assembly suitable for various motor models, characterized in that, Comprising a shaft body (1); a fixed flange a (4) which is fitted and installed on the shaft body (1); a fixed flange b (10) which is fitted and installed on the shaft body (1), and the flange face of the fixed flange b (10) faces the fixed flange a (4); a magnetic yoke (6) which is fitted and installed on the shaft body (1) and located between the fixed flange a (4) and the fixed flange b (10), and the magnetic yoke (6) is detachably connected to the fixed flange a (4) and the fixed flange b (10).

2. A tool shaft assembly suitable for use with a plurality of motor models according to claim 1, wherein, It also includes an extension magnetic yoke a (2); the extension magnetic yoke a (2) is detachably connected to one end of the magnetic yoke (6).

3. A tool shaft assembly suitable for use with a plurality of motor models according to claim 2, wherein, It also includes a fastener a (3); the fastener a (3) is provided with a plurality of; The fastener a (3) is fitted through the through hole a on the extension magnetic yoke a (2) and screwed into the threaded blind hole a on the magnetic yoke (6) to form a fixed structure a; the fastener a (3), the through hole a and the threaded blind hole a are one-to-one corresponding.

4. A tool shaft assembly suitable for use with a plurality of motor models according to claim 2, wherein, It also includes an extension magnetic yoke b (8); the extension magnetic yoke b (8) is detachably connected to the other end of the magnetic yoke (6).

5. A tool shaft assembly suitable for use with a plurality of motor models according to claim 4, wherein, It also includes a fastener b (9); the fastener b (9) is provided with a plurality of; The fastener b (9) is fitted through the through hole b on the extension magnetic yoke a (2) and screwed into the threaded blind hole b on the magnetic yoke (6) to form a fixed structure b; the fastener b (9), the through hole b and the threaded blind hole b are one-to-one corresponding.

6. A tool shaft assembly suitable for use with a plurality of motor models according to any one of claims 1-5, wherein, It also includes a fastener c (5); the fastener c (5) is provided with a plurality of; The fastener c (5) is fitted through the through hole c on the fixed flange a (4) and screwed into the threaded blind hole c on the magnetic yoke (6) to form a fixed structure c; the fastener c (5), the through hole c and the threaded blind hole c are one-to-one corresponding.

7. A tool shaft assembly suitable for use with a plurality of motor models according to any one of claims 1-5, wherein, It also includes a fastener d (7); the fastener d (7) is provided with a plurality of; The fastener d (7) is fitted through the through hole d on the fixed flange b (10) and screwed into the threaded blind hole d on the magnetic yoke (6) to form a fixed structure d; the fastener d (7), the through hole d and the threaded blind hole d are one-to-one corresponding.