Double-shaft torque motor for electric moped

Abstract

The utility model relates to the technical field of double-shaft torque motors, and discloses a double-shaft torque motor for an electric moped. The core component is arranged in the motor shell; the rotating shaft is arranged on the core component; the bearings are arranged on the outer surfaces of the two ends of the rotating shaft; the bearing end frame is arranged on the outer surface of the bearing and connected with the two ends of the motor shell, the bearing end frame is used for improving the bearing capacity of the double-shaft torque motor, the motor shell is made of high-strength aluminum alloy, the core component is composed of a permanent magnet, a rotor and a stator, and a fixing hole is formed in the bearing end frame. The inner cavity wall of the fixing hole is fixedly connected with the outer surface of the bearing, and the diameter and the size of the inner cavity wall of the fixing hole are matched with the diameter and the size of the outer surface of the bearing. The bearing capacity of the double-shaft torque motor can be improved, and the stability and the precision of the double-shaft torque motor can be ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of dual-axis torque motors, in particular to a dual-axis torque motor for an electric power-assisted vehicle. Background Art

[0002] A dual-axis torque motor is a motor that can generate two axial torques. It is mainly composed of a permanent magnet, two rotors and some coils. Its working principle is to use the torque generated by two magnetic fields in different directions to drive the two rotors to rotate separately.

[0003] Traditional dual-axis torque motors generally use a combined bearing structure to bear radial and axial forces. The inventors found in their applications that this would result in weak bearing capacity and low stability of the dual-axis torque motor. Therefore, we proposed a dual-axis torque motor for an electric power-assisted vehicle. Utility Model Content

[0004] (1) Technical problems solved

[0005] In response to the shortcomings of the existing technology, the utility model provides a dual-axis torque motor for an electric power-assisted vehicle, which has the advantages of improving the load-bearing capacity of the dual-axis torque motor and ensuring the stability and precision of the dual-axis torque motor, and solves the problems that the dual-axis torque motor has weak load-bearing capacity and low stability.

[0006] (2) Technical solution

[0007] In order to achieve the above-mentioned purpose of improving the load-bearing capacity of the dual-axis torque motor and ensuring the stability and precision of the dual-axis torque motor, the utility model provides the following technical solutions: A dual-axis torque motor for an electric power-assisted vehicle, comprising: a motor housing;

[0008] A core component, wherein the core component is arranged in the motor housing;

[0009] A rotating shaft, the rotating shaft being arranged on the core component;

[0010] Bearings, the bearings are provided on the outer surfaces of both ends of the rotating shaft;

[0011] The load-bearing end frame is arranged on the outer surface of the bearing and is connected with the two ends of the motor housing. The load-bearing end frame is used to improve the load-bearing capacity of the dual-axis torque motor. By arranging the load-bearing end frame on the outer surface of the bearing and connecting the load-bearing end frame with the motor housing by mortise and tenon joints, the load-bearing capacity of the dual-axis torque motor can be improved, and the stability and precision of the dual-axis torque motor can be ensured.

[0012] As a preferred technical solution of the present invention, the motor housing is made of high-strength aluminum alloy. By using high-strength aluminum alloy to make the motor housing, the strength of the dual-axis torque motor can be improved and the weight of the dual-axis torque motor can be reduced.

[0013] As a preferred technical solution of the present invention, the core component is composed of a permanent magnet, a rotor and a stator. The permanent magnet is usually made of materials such as rare earth permanent magnets or neodymium iron boron permanent magnets. They can generate extremely strong magnetic fields and provide the required driving force for the dual-axis torque motor. The rotor is composed of two rotors, which interact with magnetic fields in different directions respectively. Each rotor uses magnetic field changes to drive the rotor movement. The stator is usually a fixed part containing a coil, and the magnetic field generated inside it mainly provides driving force for the rotor.

[0014] As a preferred technical solution of the present invention, a fixing hole is opened inside the load-bearing end frame, and the inner wall of the fixing hole is fixedly connected to the outer surface of the bearing. The diameter and size of the inner wall of the fixing hole are adapted to the diameter and size of the outer surface of the bearing, so as to facilitate more stable fixation.

[0015] As a preferred technical solution of the present invention, a plurality of hollow cavities are opened inside the outer surface of the load-bearing end frame, and the plurality of hollow cavities are arranged in a circular array. By opening a plurality of hollow cavities, the weight of the load-bearing end frame can be reduced.

[0016] As an optimal technical solution of the present invention, the load-bearing end frame is made of one of steel, aluminum alloy, magnesium alloy and copper. The load-bearing end frame can be made of different types of metals and can be customized into various types according to market demand, with a wide range of applications.

[0017] As a preferred technical solution of the present invention, the load-bearing end frame and the motor housing are connected by mortise and tenon joints, and the load-bearing end frame and the motor housing are connected by utilizing the design of the mortise and tenon joints to ensure the stability of the connection.

[0018] (3) Beneficial effects

[0019] Compared with the prior art, the present invention provides a dual-axis torque motor for an electric power-assisted vehicle, which has the following beneficial effects:

[0020] 1. The dual-axis torque motor for the electric power-assisted vehicle is provided with a load-bearing end frame on the outer surface of the bearing, and the load-bearing end frame is connected to the motor housing by mortise and tenon joints, thereby improving the load-bearing capacity of the dual-axis torque motor and ensuring the stability and accuracy of the dual-axis torque motor.

[0021] 2. The electric power-assisted vehicle uses a dual-axis torque motor, and the load-bearing end frame can be made of different types of metals. Various types can be customized according to market demand and have a wide range of applications.

[0022] 3. The dual-axis torque motor for the electric power-assisted vehicle has multiple hollow cavities on the load-bearing end frame, thereby reducing the weight of the load-bearing end frame.

[0023] 4. The dual-axis torque motor for the electric power-assisted vehicle adopts a high-strength aluminum alloy to make the motor housing, thereby improving the strength of the dual-axis torque motor and reducing the weight of the dual-axis torque motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0025] Figure 2 This is an exploded schematic diagram of the overall structure of the utility model;

[0026] Figure 3 It is a schematic diagram of the overall structural shell and the load-bearing end frame of the utility model.

[0027] In the figure: 1. Motor housing; 2. Core component; 3. Rotating shaft; 4. Bearing; 5. Load-bearing end frame; 51. Fixing hole; 52. Hollow cavity. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] Reference Figure 1-3 , provides a dual-axis torque motor for an electric power-assisted vehicle, comprising: a motor housing 1;

[0030] Core component 2, which is arranged in the motor housing 1 and is used to realize the simultaneous rotation of the motor axis in two directions;

[0031] The rotating shaft 3 is provided on the core component 2;

[0032] Bearings 4 are provided on the outer surfaces of both ends of the rotating shaft 3;

[0033] The load-bearing end frame 5 is provided on the outer surface of the bearing 4 and is connected with both ends of the motor housing 1. The load-bearing end frame 5 is used to improve the load-bearing capacity of the dual-axis torque motor.

[0034] The motor housing 1 is made of high-strength aluminum alloy. In practical applications, by using high-strength aluminum alloy to make the motor housing 1, the strength of the dual-axis torque motor can be improved and the weight of the dual-axis torque motor can be reduced.

[0035] The core component 2 consists of permanent magnets, rotors and stators. Permanent magnets are usually made of materials such as rare earth permanent magnets or neodymium iron boron permanent magnets. They can generate extremely strong magnetic fields and provide the required driving force for the dual-axis torque motor. The rotor consists of two rotors, which interact with magnetic fields in different directions respectively. Each rotor uses magnetic field changes to drive the rotor movement. The stator is usually a fixed part containing a coil. The magnetic field generated inside it mainly provides driving force for the rotor.

[0036] A fixing hole 51 is provided inside the load-bearing end frame 5, and the inner wall of the fixing hole 51 is fixedly connected to the outer surface of the bearing 4. The diameter and size of the inner wall of the fixing hole 51 are adapted to the diameter and size of the outer surface of the bearing 4. In actual application, the bearing 4 is fixed in the fixing hole 51 to ensure greater stability during fixation.

[0037] A plurality of hollow cavities 52 are provided inside the outer surface of the load-bearing end frame 5 , and the plurality of hollow cavities 52 are arranged in a circular array. In practical applications, the weight of the load-bearing end frame 5 can be reduced by providing the plurality of hollow cavities 52 .

[0038] The load-bearing end frame 5 is made of one of steel, aluminum alloy, magnesium alloy and copper. In actual application, the load-bearing end frame 5 can be made of different types of metals and can be customized into various types according to market demand, with a wide range of applications.

[0039] The load-bearing end frame 5 and the motor housing 1 are connected by mortise and tenon. In practical applications, the load-bearing end frame 5 and the motor housing 1 are connected by using the mortise and tenon design to ensure the stability of the connection.

[0040] The load-bearing end frame 5 can also be connected to the motor housing 1 by welding. In actual application, the metal between the housing and the end cover is melted by heating, and a stable welded connection is formed after cooling to ensure mechanical strength.

[0041] It should be noted that, in this document, terms such as "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or apparatus comprising the element.

[0042] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dual-axis torque motor for an electric power-assisted vehicle, characterized in that: include: Motor housing (1); A core component (2), the core component (2) being arranged in the motor housing (1); A rotating shaft (3), the rotating shaft (3) being arranged on the core component (2); Bearings (4), the bearings (4) being provided on outer surfaces of both ends of the rotating shaft (3); A load-bearing end frame (5) is provided on the outer surface of the bearing (4) and is connected to both ends of the motor housing (1). The load-bearing end frame (5) is used to improve the load-bearing capacity of the dual-axis torque motor.

2. The dual-axis torque motor for an electric power-assisted vehicle according to claim 1, characterized in that: The motor housing (1) is made of high-strength aluminum alloy.

3. The dual-axis torque motor for an electric power-assisted vehicle according to claim 1, characterized in that: The core component (2) consists of a permanent magnet, a rotor and a stator.

4. The dual-axis torque motor for an electric power-assisted vehicle according to claim 1, characterized in that: A fixing hole (51) is provided inside the load-bearing end frame (5), and an inner cavity wall of the fixing hole (51) is fixedly connected to the outer surface of the bearing (4). The diameter and size of the inner cavity wall of the fixing hole (51) are compatible with the diameter and size of the outer surface of the bearing (4).

5. The dual-axis torque motor for an electric power-assisted vehicle according to claim 4, characterized in that: A plurality of hollow cavities (52) are provided inside the outer surface of the load-bearing end frame (5), and the plurality of hollow cavities (52) are arranged in a circular array.

6. The dual-axis torque motor for an electric power-assisted vehicle according to claim 1, characterized in that: The load-bearing end frame (5) is made of one of steel, aluminum alloy, magnesium alloy and copper.

7. The dual-axis torque motor for an electric power-assisted vehicle according to claim 1, characterized in that: The load-bearing end frame (5) and the motor housing (1) are connected by mortise and tenon joints.

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