Electric steering motor and worm transmission structure capable of improving torque

Abstract

The utility model discloses an electric steering motor and worm transmission structure capable of improving torque, which comprises a worm and a motor, one end of the worm is provided with a spline shaft, an output shaft of the motor is an inner spline shaft, and the spline shaft and the inner spline shaft are in matched transmission. By applying the transmission structure of the electric steering motor and the worm, provided by the utility model, the torque is improved, a coupler between the worm and the motor is removed, and a claw on the motor is changed into an internal spline so as to be matched with a spline shaft of the worm for use, so that the worm and the motor can be in transmission connection through the spline; the motor rotates to directly drive the worm to rotate through the spline, so that the worm and the motor can be better coaxial, and the torque of the motor can be better transmitted.

Description

Technical Field

[0001] The utility model relates to the technical fields of motors and the like, and in particular to a transmission structure of an electric steering motor and a worm gear for improving torque. Background Art

[0002] Currently, the transmission between the motor and the worm gear is mostly transmitted through a four-claw coupling, but this transmission method has the risk of misalignment and torque loss, and the transmission effect is poor. Utility Model Content

[0003] In view of this, in order to solve the above problems, the purpose of the utility model is to provide a transmission structure of an electric steering motor and a worm gear with improved torque, comprising:

[0004] A worm and a motor, wherein a spline shaft is installed at one end of the worm, and the output shaft of the motor is an internal spline shaft, and the spline shaft and the internal spline shaft cooperate for transmission.

[0005] In another preferred embodiment, it further comprises: a housing, wherein the worm and the motor are both installed in the housing.

[0006] In another preferred embodiment, a bearing is installed on the other end of the worm.

[0007] In another preferred embodiment, one end of the worm is provided with a plurality of keyways in an annular array to form the spline shaft.

[0008] In another preferred embodiment, a plurality of convex keys are provided in an inner circumferential array of the output shaft of the motor to form the internal spline shaft, and a plurality of the convex keys match the keyways.

[0009] In another preferred embodiment, a sensor is also installed in the housing.

[0010] Due to the adoption of the above technical solution, the utility model has the following positive effects compared with the prior art: through the application of the utility model, a transmission structure of an electric steering motor and a worm with improved torque is provided. In the present application, the coupling between the worm and the motor is removed, and the claw on the motor is changed to an internal spline to be used with the spline shaft of the worm, so that the worm and the motor can be connected through the spline transmission, and the rotation of the motor directly drives the rotation of the worm through the spline, so that the worm and the motor can be better coaxial and can better transmit the motor torque. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of a transmission structure of an electric steering motor and a worm gear for improving torque of the utility model;

[0012] Figure 2The utility model is a schematic diagram of a worm gear of a transmission structure of an electric steering motor and a worm gear for improving torque.

[0013] 1. Worm; 2. Spline shaft; 3. Output shaft; 4. Housing; 5. Sensor; 6. Keyway; 7. Bearing. DETAILED DESCRIPTION

[0014] The present invention will be further described below in conjunction with the accompanying drawings and specific implementations, but they are not intended to limit the present invention.

[0015] like Figure 1 and Figure 2 As shown, a transmission structure of an electric steering motor and a worm gear for improving torque in a preferred embodiment is shown, comprising:

[0016] A worm 1 and a motor, a spline shaft 2 is installed at one end of the worm 1, an output shaft 3 of the motor is an internal spline shaft, and the spline shaft 2 and the internal spline shaft cooperate for transmission.

[0017] In actual use, the coupling between the worm 1 and the motor is removed, and the claw on the motor is replaced with an internal spline to cooperate with the spline shaft of the worm 1, so that the worm 1 and the motor can be connected through the spline transmission. The rotation of the motor directly drives the worm 1 to rotate through the spline, so that the worm 1 and the motor can be better coaxial and can better transmit the motor torque.

[0018] Furthermore, as a preferred embodiment, it also includes: a housing 4, in which the worm 1 and the motor are both installed.

[0019] Furthermore, as a preferred embodiment, a bearing 7 is installed at the other end of the worm 1 .

[0020] Further, as a preferred embodiment, a plurality of keyways 6 are provided in an annular array at one end of the worm 1 to form a spline shaft 2 .

[0021] Further, as a preferred embodiment, the internal circumferential array of the output shaft 3 of the motor is provided with a plurality of convex keys to form an internal spline shaft, and the plurality of convex keys match the key slots. Further, the key slot of the worm 1 is installed on the convex key on the output shaft 3 of the motor, so that the motor can drive the worm 1 to rotate through the splines.

[0022] Furthermore, as a preferred embodiment, a sensor is installed in the housing. Furthermore, a worm wheel is installed in the housing 4, and the worm wheel and the worm are driven together, and the sensor can detect the torque of the turbine.

[0023] The above description is only a preferred embodiment of the present invention, and does not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A transmission structure of an electric steering motor and a worm gear for increasing torque, characterized in that: include: A worm and a motor, wherein a spline shaft is installed at one end of the worm, and the output shaft of the motor is an internal spline shaft, and the spline shaft and the internal spline shaft cooperate for transmission.

2. The transmission structure of the electric power steering motor and the worm gear for increasing torque according to claim 1, characterized in that: Also includes: The worm and the motor are both installed in the housing.

3. The transmission structure of the electric power steering motor and the worm gear for increasing torque according to claim 1, characterized in that: A bearing is installed at the other end of the worm.

4. The transmission structure of the electric power steering motor and the worm gear for increasing torque according to claim 1, characterized in that: One end of the worm is provided with a plurality of keyways in an annular array to form the spline shaft.

5. The transmission structure of the electric power steering motor and the worm gear for increasing torque according to claim 4, characterized in that: The inner circumferential array of the output shaft of the motor is provided with a plurality of convex keys to form the inner spline shaft, and a plurality of the convex keys match the keyways.

6. The transmission structure of the electric power steering motor and the worm gear for increasing torque according to claim 2, characterized in that: A sensor is also installed in the shell.

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