Hub motor aging test tool with clamping fly

Abstract

The utility model discloses a wheel hub motor aging test tool with a clamping fly, which comprises a bottom plate and a wheel hub motor arranged on the bottom plate, the bottom plate is also provided with a magnetic powder loading machine, a positioning assembly and a connecting assembly, the positioning tool is used for fixing one end of the wheel hub motor, and the other end of the wheel hub motor is connected to the magnetic powder loading machine through the connecting assembly; the positioning assembly comprises a positioning plate, the positioning plate is vertically mounted on the bottom plate, the mounting position of the positioning plate on the bottom plate can be adjusted, a plurality of mounting grooves are formed in the top end of the positioning plate at intervals, and one end of the hub motor is mounted in one mounting groove; the connecting assembly comprises a magnetic powder shaft connecting piece and a clamping fly connecting piece, one end of the magnetic powder shaft connecting piece is connected with an output shaft of the magnetic powder loading machine, the other end of the magnetic powder shaft connecting piece is connected with the clamping fly connecting piece, and the other end of the clamping fly connecting piece is connected with the other end of the motor shaft of the hub motor. By adjusting the current of the magnetic powder loading machine, the stress conditions of the electric bicycle in different terrains are simulated, and the aging test of the hub motor is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of hub motors, in particular to an aging test tool for hub motors with a clip. Background Art

[0002] The hub motor with a card fly is the core component of the electric bicycle. Its service life directly affects the use of the electric bicycle. In different terrains, the stress conditions of the electric bicycle are also different. Therefore, it is very important to simulate the aging test of the hub motor in different terrains. The aging test can determine the mechanical properties of the hub motor itself, and then determine its effective service life. Utility Model Content

[0003] In order to solve the deficiencies of the prior art, the present application provides a hub motor aging test tool with a card fly, comprising a base plate and a hub motor arranged on the base plate, a magnetic powder loader, a positioning assembly and a connecting assembly are also arranged on the base plate, the positioning tool is used to fix one end of the hub motor, and the other end of the hub motor is connected to the magnetic powder loader through the connecting assembly;

[0004] The positioning assembly comprises a positioning plate, which is vertically mounted on the bottom plate and can be adjusted at its mounting position on the bottom plate, a plurality of mounting grooves are arranged at intervals on the top of the positioning plate, and one end of the motor shaft of the hub motor is mounted in one of the mounting grooves;

[0005] The connecting assembly includes a magnetic powder shaft connecting piece and a card fly connecting piece, one end of the magnetic powder shaft connecting piece is connected to the output shaft of the magnetic powder loader, and the other end is connected to the card fly connecting piece, and the other end of the card fly connecting piece is connected to the other end of the motor shaft of the hub motor.

[0006] Furthermore, the installation groove is a rectangular groove opened downward along the top of the positioning plate, and a pressure plate is arranged at the top of the rectangular groove.

[0007] Furthermore, the motor shaft of the hub motor and the mounting groove form a non-rotatable connection.

[0008] Furthermore, a plurality of adjustment slots are arranged on the bottom plate at intervals, the axial direction of the adjustment slots is parallel to the axial direction of the hub motor, and the positioning plate is mounted on the bottom plate through the adjustment slots.

[0009] Furthermore, the magnetic powder shaft connector has an installation cavity inside, and corresponding key slots are respectively provided in the installation cavity and on the output shaft of the magnetic powder loader, and keys are provided in the key slots.

[0010] Furthermore, the Kafei connector also has an installation space inside, and the motor shaft of the hub motor is installed in the installation space through a bearing ejector pin.

[0011] Furthermore, the hub motor aging test tool also includes a coolant supply device, and the coolant supply device is connected to the magnetic powder loader.

[0012] The benefit of the present application lies in that the provided hub motor aging test tooling with a flywheel adjusts the current of a magnetic powder loader to simulate the stress conditions of an electric bicycle in different terrains, thereby achieving an aging test on the hub motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic structural diagram of an embodiment of a hub motor aging test tooling with a card fly in this application;

[0014] Figure 2 for Figure 1 Schematic diagram of explosion decomposition.

[0015] Markings in the figure are: 10, base plate, 101, adjustment groove, 11, hub motor, 111, connecting boss, 12, magnetic powder loader, 121, first keyway, 13, positioning plate, 131, mounting groove, 131, mounting hole, 14, magnetic powder shaft connector, 141, second keyway, 15, pressure plate, 16, card fly connector, 161, connecting groove, 17, coolant supply device, 18, bearing ejector pin. DETAILED DESCRIPTION

[0016] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0017] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0018] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0019] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0020] In addition, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0021] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0022] See also Figure 1-2 The present embodiment provides a hub motor aging test tool with a card fly, including a base plate 10 and a hub motor 11 arranged on the base plate 10. A magnetic powder loader 12, a positioning assembly and a connecting assembly are also arranged on the base plate 10. The positioning tool is used to fix one end of the hub motor, and the other end of the hub motor is connected to the magnetic powder loader through the connecting assembly.

[0023] Specifically, the positioning assembly includes a positioning plate 13, which is vertically mounted on the base plate and can be adjusted in its mounting position on the base plate 10 to achieve assembly between the hub motor 11 and the magnetic powder loader 12. The adjustment method is to open a plurality of adjustment grooves 101 at intervals on the base plate 10. The axial direction of the adjustment groove 101 is parallel to the axial direction of the hub motor, which is convenient for pressing the hub motor toward the magnetic powder loader. The bottom of the positioning plate 13 can be matched with the adjustment groove through structures such as bolts, thereby achieving the fixation of the positioning plate.

[0024] The adjustment of the positioning plate is only one aspect of the adjustment. When the positioning plate 13 is fixedly installed, in order to be able to adjust the installation of the hub motor 11, a plurality of installation grooves 131 are spaced apart at the top of the positioning plate 13, and one end of the motor shaft of the hub motor is installed in one of the installation grooves.

[0025] More specifically, mounting holes 132 are provided on the positioning plates on both sides of the top of each group of mounting grooves 131. When the hub motor is installed in the mounting groove, a pressure plate 15 is installed through the mounting hole 132. The pressure plate 15 also has a mounting hole. The pressure plate 15 and the positioning plate can be assembled by bolts, or one end can be rotatably connected to the mounting hole 132 and the other end can be locked with a pin.

[0026] Specifically, the connection assembly includes a magnetic powder shaft connection 14 and a knifing connection 16. One end of the magnetic powder shaft connection 14 is connected to the output shaft of the magnetic powder loader, and the other end is connected to the knifing connection. The other end of the knifing connection is connected to the other end of the motor shaft of the hub motor.

[0027] Since the hub motor 11 of the present application is a hub motor with a crotch, the crotch connector 16 is connected to the magnetic powder shaft connector 14 by bolts. The crotch connector 16 is used to install the crotch and has an installation space inside. The magnetic powder shaft connector 14 has an installation cavity inside. The installation space of the crotch connector 16 is used to install one end of the hub motor and the bearing ejector pin 18. The installation cavity of the magnetic powder shaft connector 14 is used to install the output shaft of the magnetic powder loader.

[0028] In order to realize synchronous rotation of the output shaft of the magnetic powder loader 12 and one end of the wheel hub motor, a plurality of connecting bosses 111 are circumferentially spaced at one end of the wheel roller motor 11, and a corresponding connecting groove 161 is provided in the installation space of the kaffir connector 16. The wheel hub motor drives the kaffir connector 16 to rotate through the cooperation between the connecting boss and the connecting groove. In addition, a second key slot 141 is provided in the installation cavity of the magnetic powder shaft connector 14, and a corresponding first key slot 121 is provided on the output shaft of the magnetic powder loader 12, and keys are provided in the first key slot 121 and the second key slot 141. At the same time, in order to prevent the motor shaft of the wheel hub motor from rotating, the installation slot 131 is a rectangular slot downwardly provided along the top of the positioning plate, and a plane is provided on the motor shaft to form a rotation-stopping connection with the rectangular installation slot.

[0029] In addition, the hub motor aging test tool of the present application also includes a coolant supply device 17, which is connected to the magnetic powder loader 12 through a pipeline. The coolant is generally cold water and is used to cool the magnetic powder loader.

[0030] It should be noted that the magnetic powder loader, also known as the magnetic powder loader, is based on the electromagnetic principle and uses magnetic powder to transmit torque. It has the characteristic that the excitation current and the transmitted torque are basically linearly related. It can transmit a certain torque regardless of the slip. It has the advantages of fast response speed, simple structure, no pollution, no noise, no impact vibration, and energy saving. Therefore, it can simulate the force conditions of bicycles in different terrains. By programming the hub motor in advance and simulating the start and stop conditions of the bicycle, the hub motor is powered on and the card fly connector 16 and the motor body rotate, and the motor shaft is kept in place due to the limit. The wheel hub motor does not rotate. After the wheel hub motor rotates, it drives the kaffir connector 16 and the magnetic powder shaft connector 14 to rotate. The magnetic powder shaft connector 14 drives the output shaft of the magnetic powder loader to rotate. Since the output shaft of the magnetic powder loader itself does not rotate, the current of the magnetic powder loader is adjusted, and then the rotational resistance of the output shaft of the magnetic powder loader is adjusted. The wheel hub motor overcomes the resistance of the output shaft of the magnetic powder loader and keeps the wheel hub motor in a state of rotation and stopping, thereby impacting the gears and other mechanical parts inside the motor, testing the corresponding time, detecting whether the mechanical properties of the motor itself meet the standards, and realizing the aging test of the wheel hub motor.

[0031] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A hub motor aging test tool with a clip, comprising a base plate and a hub motor arranged on the base plate, characterized in that: A magnetic powder loader, a positioning assembly and a connecting assembly are also arranged on the bottom plate, wherein the positioning assembly is used to fix one end of the wheel hub motor, and the other end of the wheel hub motor is connected to the magnetic powder loader through the connecting assembly; The positioning assembly comprises a positioning plate, which is vertically mounted on the bottom plate and can be adjusted at its mounting position on the bottom plate, a plurality of mounting grooves are arranged at intervals on the top of the positioning plate, and one end of the motor shaft of the hub motor is mounted in one of the mounting grooves; The connecting assembly includes a magnetic powder shaft connecting piece and a card fly connecting piece, one end of the magnetic powder shaft connecting piece is connected to the output shaft of the magnetic powder loader, and the other end is connected to the card fly connecting piece, and the other end of the card fly connecting piece is connected to the other end of the motor shaft of the hub motor.

2. The aging test tool for hub motor with clips according to claim 1, characterized in that: The mounting groove is a rectangular groove opened downward along the top of the positioning plate, and a pressing plate is arranged at the top of the rectangular groove.

3. The aging test tool for hub motor with clips according to claim 2, characterized in that: The motor shaft of the hub motor forms a non-rotatable connection with the mounting groove.

4. The aging test tool for hub motor with clips according to claim 2, characterized in that: The bottom plate is provided with a plurality of adjustment slots at intervals, wherein the axial direction of the adjustment slots is parallel to the axial direction of the hub motor, and the positioning plate is mounted on the bottom plate through the adjustment slots.

5. The aging test tool for hub motor with clips according to claim 1, characterized in that: The magnetic powder shaft connector has an installation cavity inside, and corresponding key slots are respectively provided in the installation cavity and on the output shaft of the magnetic powder loader, and keys are arranged in the key slots.

6. The aging test tool for hub motor with clips according to claim 5, characterized in that: The Kafei connector also has an installation space inside, and the motor shaft of the hub motor is installed in the installation space through a bearing ejector pin.

7. The aging test tool for hub motor with clips according to claim 1, characterized in that: The hub motor aging test tool also includes a coolant supply device, and the coolant supply device is connected to the magnetic powder loader.

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