Deceleration type scooter hub motor

Abstract

The utility model discloses a speed reduction type scooter hub motor in the technical field of hub motors. The speed reduction type scooter hub motor comprises a hub motor main body; a protective cover; a jack; a threaded hole; and the pre-connecting mechanism is distributed at one end of the protective cover and one end of the hub motor main body. According to the utility model, by arranging the pre-connecting mechanism, when the protective cover is installed, the protective cover can be buckled at one end of the hub motor main body, and then the protective cover is rotated, so that the T-shaped column is moved from one side of the limiting chute to the other side of the limiting chute, at the moment, the insertion hole is aligned with the threaded hole, and meanwhile, the positioning pin is aligned with the positioning hole; when the positioning pin is aligned with the positioning hole, the telescopic spring is restored due to loss of limitation, so that the positioning pin can be inserted into the positioning hole, the left-right moving direction of the protective cover is limited, pre-connection of the protective cover and the hub motor body is realized, convenience is provided for subsequent screwing of a bolt, and the service life of the hub motor is prolonged. Therefore, the installation efficiency of the protective cover is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to wheel hub motor technical field, concretely is a kind of speed reducer formula scooter wheel hub motor. BACKGROUND

[0002] Wheel hub motor technology is also called as wheel-mounted motor technology, its biggest feature is that power device, transmission device and brake device are integrated together into wheel hub, so that the mechanical part of electric vehicle is greatly simplified, in recent years, wheel hub motor becomes the hot power device in electric machinery field, wheel hub motor is divided into direct-drive type and speed reducer formula, speed reducer formula wheel hub motor usually includes motor, wheel shaft, speed reducer and wheel hub, motor rotor shaft is connected with speed reducer, and power is output after speed increasing and torque increasing by wheel shaft.

[0003] Generally, the last step of installing wheel hub is to fix the protective cover of wheel hub motor on one end of wheel hub motor by bolt, and in this process, the staff needs to hold the protective cover with one hand and twist the bolt with the other hand, which is extremely inconvenient to operate, thereby affecting the installation efficiency of wheel hub cover. Based on this, the utility model designs a speed reducer formula scooter wheel hub motor to solve the above problems. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a speed reducer formula scooter wheel hub motor to solve the problem of inconvenient installation of protective cover proposed in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical scheme: a speed reducer formula scooter wheel hub motor, comprising:

[0006] Wheel hub motor body;

[0007] Protective cover, the protective cover is installed on one end of the wheel hub motor body by bolt;

[0008] Insertion hole, the insertion hole is opened in one end of the protective cover, and penetrates to the other end of the protective cover;

[0009] Threaded hole, the threaded hole is opened in the inner side of the wheel hub motor body;

[0010] Pre-connection mechanism, the pre-connection mechanism is distributed in one end of the protective cover and the wheel hub motor body, for realizing the pre-connection of the protective cover and the wheel hub motor body.

[0011] Preferably, the pre-connection mechanism comprises a positioning pin, a limiting sliding groove, a positioning hole, a T-shaped column, an extension spring, the positioning pin is penetrated from one end of the protective cover to the other end of the protective cover and is located at one side of the insertion hole, the extension spring is welded and fixed at one end of the protective cover and is sleeved on the outside of the positioning pin, the T-shaped column is welded and fixed at one end of the protective cover, the positioning hole is arranged on the inside of the hub motor body and is located at one side of the threaded hole, and the limiting sliding groove is arranged at one end of the hub motor body and is located below the threaded hole.

[0012] Preferably, the diameter of one end of the positioning pin is equal to that of the positioning hole, and the two ends of the extension spring are welded and fixed at one end of the protective cover and the outside of the positioning pin, respectively.

[0013] Preferably, one end of the T-shaped column is matched with the limiting sliding groove.

[0014] Preferably, the number of the T-shaped columns is two, and the two T-shaped columns are symmetrically arranged along the transverse central axis of the protective cover.

[0015] Preferably, the inside of the protective cover is provided with a through hole matched with the positioning pin, and one end of the positioning pin away from the extension spring is provided with a limiting plate larger than the diameter of the through hole.

[0016] Compared with the prior art, the pre-connection mechanism is arranged, the protective cover is first buckled at one end of the hub motor body when the protective cover is installed, then the protective cover is rotated, so that the T-shaped column is moved from one side of the limiting sliding groove to the other side of the limiting sliding groove, at this time, the insertion hole is aligned with the threaded hole, and the positioning pin is aligned with the positioning hole, when the positioning pin is aligned with the positioning hole, the extension spring is restored due to the loss of limiting, so that the positioning pin is inserted into the positioning hole, thereby limiting the left and right movement directions of the protective cover, and the pre-connection of the protective cover and the hub motor body is realized, thereby providing convenience for the subsequent screwing of the bolt, and the installation efficiency of the protective cover is increased. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained according to these drawings without creating labor.

[0018] Fig. 1 The structural schematic diagram of the present application;

[0019] Fig. 2The utility model discloses a protective cover structure schematic drawing.

[0020] Fig. 3 The utility model discloses T -shaped post and spacing slide groove's connection schematic drawing.

[0021] In the drawing, the component list that each sign represents is as follows:

[0022] 1 - wheel hub motor main body, 2 - protective cover, 3 - jack, 4 - threaded hole, 5 - pre - connection mechanism, 501 - positioning pin, 502 - spacing slide groove, 503 - positioning hole, 504 - T -shaped post, 505 - telescopic spring. Specific implementation

[0023] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments only are a part of the embodiments of the utility model, and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor all belong to the range of protection of the utility model.

[0024] Please refer to Figs. 1-3 The utility model provides a kind of deceleration formula scooter wheel hub motor technical scheme: a kind of deceleration formula scooter wheel hub motor, comprising:

[0025] Wheel hub motor main body 1;

[0026] Protective cover 2, protective cover 2 is installed in one end of wheel hub motor main body 1 by bolt;

[0027] Jack 3, jack 3 is opened in one end of protective cover 2, and it is through to the other end of protective cover 2;

[0028] Threaded hole 4, threaded hole 4 is opened in the inside of wheel hub motor main body 1;

[0029] Pre - connection mechanism 5, pre - connection mechanism 5 distributes in one end of protective cover 2 and wheel hub motor main body 1, for realizing the pre - connection of protective cover 2 and wheel hub motor main body 1.

[0030] Wherein, the pre-connection mechanism 5 comprises a positioning pin 501, a limiting sliding groove 502, a positioning hole 503, a T-shaped column 504, and an extension spring 505, the positioning pin 501 penetrates from one end of the protective cover 2 to the other end of the protective cover 2 and is located on one side of the insertion hole 3, the extension spring 505 is welded and fixed to one end of the protective cover 2 and is sleeved on the outside of the positioning pin 501, the T-shaped column 504 is welded and fixed to one end of the protective cover 2, the positioning hole 503 is opened on the inside of the hub motor body 1 and is located on one side of the threaded hole 4, the limiting sliding groove 502 is opened on one end of the hub motor body 1 and is located below the threaded hole 4, when the protective cover 2 is installed, the protective cover 2 can be buckled on one end of the hub motor body 1 first, then the protective cover 2 is rotated, when the T-shaped column 504 at one end of the protective cover 2 is inserted into one end of the limiting sliding groove 502, the extension spring 505 will shrink due to the shielding of one end of the hub motor body 1, then the protective cover 2 is rotated, so that the T-shaped column 504 moves from one side of the limiting sliding groove 502 to the other side of the limiting sliding groove 502, thereby the front and back movement direction of the protective cover 2 can be limited by the cooperation of one end of the T-shaped column 504 and the limiting sliding groove 502, at this time the insertion hole 3 is aligned with the threaded hole 4, and the positioning pin 501 is aligned with the positioning hole 503, when the positioning pin 501 is aligned with the positioning hole 503, the extension spring 505 will restore due to the loss of limiting, so that the positioning pin 501 is inserted into the positioning hole 503, so as to limit the left and right movement direction of the protective cover 2, so as to realize the pre-connection of the protective cover 2 and the hub motor body 1, thereby providing convenience for the subsequent screwing of the bolt, so as to increase the installation efficiency of the protective cover 2.

[0031] Wherein, the diameter of one end of the positioning pin 501 is equal to that of the positioning hole 503, and the two ends of the extension spring 505 are respectively welded and fixed to one end of the protective cover 2 and the outside of the positioning pin 501, so that the extension spring 505 can shrink when the positioning pin 501 moves, and then the positioning pin 501 can be restored by the restoring force of the extension spring 505.

[0032] Wherein, one end of the T-shaped column 504 is matched with the limiting sliding groove 502, so that the T-shaped column 504 can be inserted into one side of the limiting sliding groove 502, and then the T-shaped column 504 can be moved from one side of the limiting sliding groove 502 to the other side of the limiting sliding groove 502 by rotating the protective cover 2, thereby the front and back movement direction of the protective cover 2 can be limited by the cooperation of one end of the T-shaped column 504 and the limiting sliding groove 502.

[0033] Wherein, the number of T-shaped columns 504 is two, and the two T-shaped columns 504 are symmetrically arranged along the transverse central axis of the protective cover 2, so as to increase the stability of the connection between the protective cover 2 and one end of the hub motor body 1.

[0034] The inner side of the protective cover 2 is provided with a through hole matched with the positioning pin 501, and the end of the positioning pin 501 away from the telescopic spring 505 is provided with a limiting plate larger than the diameter of the through hole, so that the end of the positioning pin 501 is protruded relative to the protective cover 2, and then the end of the positioning pin 501 is separated from the positioning hole 503 by pulling the positioning pin 501.

[0035] Working principle: when the protective cover 2 is installed, the protective cover 2 is first buckled on one end of the hub motor body 1, then the protective cover 2 is rotated, when the T-shaped column 504 at one end of the protective cover 2 is inserted into one end of the limiting sliding groove 502, the telescopic spring 505 is contracted due to the shielding of one end of the hub motor body 1, then the protective cover 2 is rotated, so that the T-shaped column 504 is moved from one side of the limiting sliding groove 502 to the other side of the limiting sliding groove 502, so that the front and back movement direction of the protective cover 2 is limited by the cooperation of the end of the T-shaped column 504 and the limiting sliding groove 502, at this time the insertion hole 3 is aligned with the threaded hole 4, and the positioning pin 501 is aligned with the positioning hole 503, when the positioning pin 501 is aligned with the positioning hole 503, the telescopic spring 505 is restored due to the loss of limiting, so that the positioning pin 501 is inserted into the positioning hole 503, so that the left and right movement direction of the protective cover 2 is limited, so as to realize the pre-connection of the protective cover 2 and the hub motor body 1, thereby providing convenience for the subsequent screwing of the bolt, so as to increase the installation efficiency of the protective cover 2.

[0036] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are contained in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0037] The preferred embodiments of the above disclosed application are only used to help explain the application. The preferred embodiments do not describe all the details, nor limit the application to the specific embodiments described. Obviously, many modifications and changes can be made according to the content of the specification. The embodiments are selected and described in detail in order to better explain the principles and practical applications of the application, so that those skilled in the art can well understand and utilize the application. The application is limited by the claims and their entire scope and equivalents.

Claims

1. A reduced-speed scooter wheel hub motor, characterized by, Include: Wheel hub motor body (1); Protective cover (2), the protective cover (2) is bolted to one end of the wheel hub motor body (1); The socket (3) is opened in one end of the protective cover (2), and penetrates to the other end of the protective cover (2); Threaded hole (4), the threaded hole (4) is opened in the inner side of the wheel hub motor body (1); Pre-connection mechanism (5), the pre-connection mechanism (5) is distributed in the protective cover (2) and one end of the wheel hub motor body (1), for realizing the pre-connection of the protective cover (2) and the wheel hub motor body (1).

2. The reduction-freestyle scooter hub motor according to claim 1, characterized in that: The pre-connection mechanism (5) includes positioning pin (501), limit sliding groove (502), positioning hole (503), T-shaped column (504), telescopic spring (505), the positioning pin (501) penetrates from one end of the protective cover (2) to the other end of the protective cover (2), and is located on one side of the socket (3), the telescopic spring (505) is welded and fixed on one end of the protective cover (2), and is sleeved on the outer side of the positioning pin (501), the T-shaped column (504) is welded and fixed on one end of the protective cover (2), the positioning hole (503) is opened in the inner side of the wheel hub motor body (1), and is located on one side of the threaded hole (4), the limit sliding groove (502) is opened in one end of the wheel hub motor body (1), and is located below the threaded hole (4).

3. The reduction-freestyle scooter hub motor according to claim 2, characterized in that: The diameter of the positioning hole (503) and one end of the positioning pin (501) is equal, and the two ends of the telescopic spring (505) are respectively welded and fixed on one end of the protective cover (2) and the outer side of the positioning pin (501).

4. The reduction-freestyle scooter hub motor according to claim 2, wherein: One end of the T-shaped column (504) is matched with the limit sliding groove (502).

5. The reduction-freestyle scooter hub motor according to claim 2, wherein: The number of the T-shaped column (504) is two, and the two T-shaped columns (504) are symmetrically arranged along the transverse central axis of the protective cover (2).

6. The reduction-freestyle scooter hub motor according to claim 2, wherein: The inner side of the protective cover (2) is provided with a through hole matched with the positioning pin (501), and one end of the positioning pin (501) away from the telescopic spring (505) is provided with a limiting plate larger than the diameter of the through hole.

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