Barrel shaft inner rotor motor

Abstract

The utility model discloses a barrel shaft inner rotor motor, which comprises a shell, an outer end cover, a wire outlet end cover, a barrel shaft, a tower footing and a machine core, the barrel shaft is provided with a first through hole, a wire outlet shaft is integrally formed in the center position of the wire outlet end cover, the wire outlet end cover is rotatably arranged at the left end of the shell through a first ball bearing, and the tower footing is provided with a second through hole. The outer end cover is fixedly installed at the right end of the shell in a threaded connection mode. And the hub motor and the frame can be quickly mounted or dismounted through the quick dismounting rod, and maintenance and replacement are convenient. Compared with a traditional motor, a barrel shaft form is used, an internal structure and an installation mode are optimized, the installation efficiency of a whole vehicle factory and a consumer is improved, an independent integrated wire outlet end cover and a wire outlet shaft are arranged, a stepped hole and a wire outlet hole are convenient to machine and form, meanwhile, the overall structural strength of the shell can be guaranteed, and after the integrated wire outlet end cover and the wire outlet shaft are damaged, the shell is not damaged. Therefore, the maintenance cost is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of hub motor technology, and in particular relates to a rotor motor with an internal shaft. Background Technology

[0002] In-wheel motors, also known as wheel-mounted motors, are characterized by integrating the power, transmission, and braking systems into the wheel hub, greatly simplifying the mechanical components of electric vehicles. However, existing in-wheel motors have complex structures. During installation and disassembly, the main shaft and cable output shaft are fixed to the frame with nuts, resulting in low assembly efficiency and hindering maintenance and replacement. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide an internal rotor motor for easy installation and disassembly.

[0004] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: a barrel-shaft internal rotor motor, comprising a housing, an outer end cover, a cable outlet end cover, a barrel shaft, a tower base, and a motor core. The barrel shaft has a first through hole. The cable outlet end cover is integrally formed with a cable outlet shaft at its center. The cable outlet end cover is rotatably mounted on the left end of the housing via a first ball bearing. The outer end cover is screwed and fixedly mounted on the right end of the housing. The cable outlet shaft has a stepped hole. The cable outlet end cover is also provided with a cable outlet hole communicating with the stepped hole. The left end of the barrel shaft is fixedly mounted in the stepped hole via a snap key. The right end of the barrel shaft is rotatably mounted on the outer end cover via a second ball bearing. The tower base is screwed and fixedly mounted on the outer end cover. The tower base is also rotatably mounted on the barrel shaft via a third ball bearing. The housing of the motor core is fixedly connected to the housing. The motor core is fixedly mounted on the barrel shaft. The cable outlet shaft is provided with a second through hole coaxial with the first through hole of the barrel shaft and having the same diameter.

[0005] Preferably, a bushing is fixedly fitted to the outer end of the barrel shaft.

[0006] Preferably, the cable outlet cover is also provided with a tool hole.

[0007] Preferably, the depth of the stepped hole is 20%-30% of the length of the lead-out spool.

[0008] Compared with existing technologies, the advantages of this utility model are: the quick-release lever enables rapid installation or removal of the hub motor from the vehicle frame, facilitating maintenance and replacement. Compared with traditional motors, the use of a barrel shaft optimizes the internal structure and installation method, improving installation efficiency for both vehicle manufacturers and consumers. The separate integrated cable outlet cover and cable outlet shaft facilitate the machining of stepped holes and cable outlet holes, while ensuring the overall structural strength of the outer casing. Furthermore, if the integrated cable outlet cover and cable outlet shaft are damaged, they can be individually disassembled and replaced, reducing maintenance costs. Attached Figure Description

[0009] The present invention will be further described below with reference to the accompanying drawings.

[0010] Figure 1 This is the front view of this utility model.

[0011] Figure 2 yes Figure 1 A sectional view along the AA direction.

[0012] Figure 3 This is a 3D view of the left side of the cable outlet cover.

[0013] Figure 4 This is a 3D view of the right side of the cable outlet cover. Detailed Implementation

[0014] The present invention will now be described in detail with reference to specific embodiments:

[0015] like Figures 1 to 4 The illustrated internal rotor motor includes a housing 1, an outer end cover 2, a cable outlet end cover 3, a barrel shaft 4, a tower base 6, and a motor core 7. The barrel shaft 4 has a first through hole. The cable outlet end cover 3 has a cable outlet shaft integrally formed at its center. The cable outlet end cover 3 is rotatably mounted on the left end of the housing 1 via a first ball bearing 30. The outer end cover 2 is screwed and fixedly mounted on the right end of the housing 1. The cable outlet shaft has a stepped hole 31. The cable outlet end cover 3 also has a cable outlet hole 32 communicating with the stepped hole 31. The left end of the barrel shaft 4 is fixedly mounted in the stepped hole 31 via a key. The stepped hole 31 and the barrel shaft 4... The upper part is provided with a keyway, and the locking key is located in the keyway of the two to prevent the barrel shaft 4 and the stepped hole 31 from rotating relative to each other. The right end of the barrel shaft 4 is rotatably mounted on the outer end cover 2 through the second ball bearing 40. The tower base 6 is screwed and fixedly mounted on the outer end cover 2. The tower base 6 is also rotatably mounted on the barrel shaft 4 through the third ball bearing 60. The housing of the mechanism 7 is fixedly connected to the outer shell 1. The mechanism 7 is fixedly mounted on the barrel shaft 4. The lead-out shaft is provided with a second through hole 33 that is coaxial with the first through hole of the barrel shaft 4 and has the same diameter, so that the quick-release rod can pass through the first through hole and the second through hole 33.

[0016] A bushing 5 is fixedly installed on the outer end of the barrel shaft 4. The bushing 5 increases the structural strength of the exposed right end of the barrel shaft 4 and extends its service life.

[0017] The cable outlet cover 3 is also provided with a tool hole 34, through which a tool can pass to facilitate the insertion and removal of the line connector on the mechanism 7.

[0018] The depth of the stepped hole 31 is 25% of the length of the outlet shaft, which ensures the structural strength of the outlet shaft of the outlet end cover 3 while preventing relative rotation of the barrel shaft 4 by means of the locking key.

[0019] The combination of the barrel shaft 4 and the cable outlet shaft is locked and fixed on the frame via a quick-release lever. The mechanism 7 drives the outer shell 1 and the outer end cover 2 to rotate synchronously. The quick-release lever allows for quick installation or removal of the hub motor from the frame, facilitating maintenance and replacement. Compared to traditional motors, the barrel shaft design optimizes the internal structure and installation method, improving installation efficiency for both vehicle manufacturers and consumers. The separate, integrated cable outlet end cover and cable outlet shaft facilitate the machining of stepped holes and cable outlet holes, while ensuring the overall structural strength of the outer shell. Damage to the integrated cable outlet end cover and cable outlet shaft allows for individual removal and replacement, reducing maintenance costs.

Claims

1. A rotor motor with an internal shaft, characterized in that: The device includes a housing (1), an outer end cap (2), a cable outlet end cap (3), a barrel shaft (4), a tower base (6), and a mechanism (7). The barrel shaft (4) has a first through hole. The cable outlet end cap (3) has a cable outlet shaft integrally formed at its center. The cable outlet end cap (3) is rotatably mounted on the left end of the housing (1) via a first ball bearing (30). The outer end cap (2) is screwed and fixedly mounted on the right end of the housing (1). The cable outlet shaft has a stepped hole (31). The cable outlet end cap (3) also has a cable outlet hole (32) that communicates with the stepped hole (31). The left end of the barrel shaft (4) is fixedly installed in the stepped hole (31) by a key. The right end of the barrel shaft (4) is rotatably installed on the outer end cover (2) by a second ball bearing (40). The tower base (6) is screwed and fixedly installed on the outer end cover (2). The tower base (6) is also rotatably installed on the barrel shaft (4) by a third ball bearing (60). The housing of the mechanism (7) is fixedly connected to the outer shell (1). The mechanism (7) is fixedly installed on the barrel shaft (4). The lead shaft is provided with a second through hole (33) that is coaxial with the first through hole of the barrel shaft (4) and has the same diameter.

2. The internal rotor motor according to claim 1, characterized in that: A bushing (5) is fixedly installed on the outer end of the barrel shaft (4).

3. The internal rotor motor according to claim 1, characterized in that: The cable outlet end cap (3) is also provided with a tool hole (34).

4. The internal rotor motor according to claim 1, characterized in that: The depth dimension of the stepped hole (31) is 20%-30% of the length dimension of the lead-out shaft.

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