Motor shaft assembly for motor and motor
A technology of motor shaft and assembly, applied in electrical components, electromechanical devices, electric components, etc., can solve the problems of large impact torque, damage to the transmission chain, complex structure, etc., and achieve the effect of improving reliability and eliminating impact torque.
Active Publication Date: 2021-01-29
BEIJING ELECTRIC VEHICLE
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Problems solved by technology
However, the motor rotor, reducer, transmission half shaft and wheels are rigidly connected in the entire transmission chain. This rigid connection is very prone to large impact torque, which can reach more than twice the design value, resulting in transmission failure. chain damage
At present, there is a clutch between the engine and the transmission on fuel vehicles. When the impact exceeds the design value, the clutch will slip to reduce or even eliminate the impact. If a clutch structure is added between the motor and the reducer on the electric vehicle, the structure will be more complicated. sex
Method used
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[0030] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.
[0031] Refer below Figure 1-Figure 7 A motor shaft assembly 1 for a motor 2 according to an embodiment of the present invention is described. The motor shaft assembly 1 includes a first shaft body 11 and a second shaft body 12 . One end of the first shaft body 11 is configured as the output end of the motor shaft assembly 1 , and at least part of the second shaft body 12 is sleeved on the outer periphery of the first shaft body 11 and connected with the rotor of the motor 2 . Wherein the first shaft body 11 has a first friction surface...
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The invention discloses a motor shaft assembly for a motor and the motor, the motor shaft assembly comprises: a first shaft body, one end of which is configured to be an output end of the motor shaftassembly; a second shaft body, at least part of which sleeves the periphery of the first shaft body and is connected with a rotor of the motor; wherein a first friction face is arranged on the periphery of the first shaft body, a second friction face right opposite to the first friction face is arranged on the second shaft body, and the first friction face makes contact with the second friction face so as to be suitable for transmitting torque. According to the motor shaft assembly for the motor, the first friction face on the first shaft body is in surface-to-surface contact with the second friction face on the second shaft body, so that torque transmission is realized. Moreover, when the impact torque of the system exceeds a design value, the impact torque can be reduced or eliminated through slipping between the first shaft body and the second shaft body, so that the motor shaft assembly is protected, and the reliability of the motor shaft assembly is further improved.
Description
technical field [0001] The invention relates to the field of motors, in particular to a motor shaft assembly and a motor for a motor. Background technique [0002] In related technologies, the output torque of the electric vehicle drive motor is transmitted to the reducer through the motor shaft, and then transmitted to the wheels through the transmission half shaft. However, the motor rotor, reducer, transmission half shaft and wheels are rigidly connected in the entire transmission chain. This rigid connection is very prone to large impact torque, which can reach more than twice the design value, resulting in transmission failure. The chain is damaged. At present, there is a clutch between the engine and the transmission on fuel vehicles. When the impact exceeds the design value, the clutch will slip to reduce or even eliminate the impact. If a clutch structure is added between the motor and the reducer on the electric vehicle, the structure will be more complicated. sex...
Claims
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Patent Timeline
Login to View More IPC IPC(8): H02K7/00H02K11/20
CPCH02K7/003H02K11/20
Inventor 岳巍李毅梁红强崔江林
Owner BEIJING ELECTRIC VEHICLE