CN209972679U - Wheel shaft fixing device for balance car, balance car wheel and balance car - Google Patents
Wheel shaft fixing device for balance car, balance car wheel and balance car Download PDFInfo
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- CN209972679U CN209972679U CN201920659910.9U CN201920659910U CN209972679U CN 209972679 U CN209972679 U CN 209972679U CN 201920659910 U CN201920659910 U CN 201920659910U CN 209972679 U CN209972679 U CN 209972679U
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Abstract
The utility model relates to a shaft fixing device, balance car wheel and balance car for balance car, one of them shaft fixing device for balance car includes mount pad and nut, offers the first through-hole that the shaft that is used for the wheel of balance car penetrates on the mount pad, be provided with in the first through-hole and be used for the epaxial external splines assorted internal spline of wheel, the nut is used for threaded connection in the epaxial of wheel, and the nut is located the inboard of mount pad. The utility model discloses set up the internal spline on the mount pad, utilize internal spline to take turns epaxial external spline to match to make and not produce relative movement between shaft and the mount pad, and the setting of nut can prevent that the shaft from breaking away from in the mount pad along the axial. The structure is ingenious and the use is convenient.
Description
Technical Field
The utility model relates to a shaft fixing device, balance car wheel and balance car for balance car.
Background
The existing balance car has a complex fixing structure of a motor shaft, the motor shaft is installed on a shell through an installation support, a flat surface is usually required to be arranged on a wheel shaft, and a flat opening characteristic matched with the flat surface is arranged on the installation support.
SUMMERY OF THE UTILITY MODEL
The utility model relates to a shaft fixing device, balance car wheel and balance car for the balance car utilizes the mode that sets up first fastening characteristic like internal spline in the mount pad, fixes the axletree, and is fixed firm, and the installation is convenient.
The utility model discloses a realize through following technical scheme:
the utility model provides a shaft fixing device for balance car for the fixed of shaft of balance car wheel, includes mount pad and nut, offers the first through-hole that is used for the shaft to penetrate on the mount pad, be provided with in the first through-hole and be used for with the shape assorted first fastening characteristic of shaft, the nut is used for threaded connection on the shaft of wheel, and the nut is located the inboard of mount pad. The inner side of the mount base refers to a side close to the middle of the balance car, and the outer side of the mount base refers to a side close to the outer wheel, i.e., a side far from the middle of the balance car.
Through adopting above-mentioned technical scheme, set up first fastening characteristic on the mount pad to do not produce relative movement between messenger's shaft and the mount pad, and the setting of nut can prevent that the shaft from breaking away from in the mount pad along the axial. The structure is ingenious and the use is convenient.
As a further development of the invention, the first fastening feature is an internal spline. The internal spline is used for matching the external spline on the wheel shaft, so that the external spline and the internal spline are prevented from rotating relatively, and the spline is stably and firmly matched. In other aspects, the first fastening feature may be a tapered hole, a profiled hole, or the like.
As a further improvement of the utility model, the hole of first through-hole is to being left right direction setting. Through adopting above-mentioned technical scheme, the hole of first through-hole is to being left right direction setting, is favorable to the wheel to be installed in the both sides of balance car casing on the one hand, makes two wheels parallel, also is favorable to the wheel to rotate along the axle to make the balance car advance, retreat.
The wheel shaft fixing device for the balance car adopts any one scheme, and the wheel shaft of the wheel is provided with a second fastening feature matched with the first fastening feature. Through adopting above-mentioned technical scheme, the setting of second fastening characteristic is favorable to with the first fastening characteristic phase-match on the mount pad, prevents the relative rotation between the shaft of wheel and the mount pad.
As a further development of the invention, the second fastening feature is an external spline. The arrangement of the external spline and the internal spline ensures that the external spline and the internal spline are tightly matched and are not easy to rotate relatively. The second fastening feature may be other arrangements such as a tapered portion, which may be a pyramid or a cone, and the first fastening feature may be a tapered hole, etc., which also provides the effect of preventing rotation of the axle.
As a further improvement of the utility model, the axle of the wheel and the end of the axle far away from the wheel are provided with external thread parts for nut connection. The external thread part is beneficial to the connection of the nut, thereby preventing the wheel shaft from being separated from the mounting seat
As a further improvement of the utility model, the wheel shaft is provided with a third through hole for the lead in the hub motor to penetrate out. Through adopting above-mentioned technical scheme, be favorable to wearing out of wire in order to connect the controller in the casing.
The balance car comprises the wheel shaft fixing device for the balance car and the wheel of the balance car, wherein the wheel shaft penetrates through the first through hole, the first fastening feature is matched with the second fastening feature, the nut is connected to the wheel shaft in a threaded mode, and the nut directly or indirectly abuts against the inner side of the mounting seat. Through adopting above-mentioned technical scheme, the setting of second fastening characteristic is favorable to with the first fastening characteristic phase-match on the mount pad, prevents the relative rotation between the shaft of wheel and the mount pad, and screw thread portion is favorable to being connected of nut to prevent that the shaft from breaking away from in the mount pad. The first fastening feature is an internal spline and the second fastening feature is an external spline, the fit is secure.
As a further improvement of the utility model, the external thread part at the end of the wheel shaft is exposed out of the first through hole, and the thread on the external thread part, which is close to the wheel, is flushed with the inner side surface of the mounting seat or is positioned in the first through hole. Through adopting above-mentioned technical scheme, when being favorable to the nut to twist on external screw thread portion, carry out direct support to the mount pad to further lock solid the shaft.
As a further improvement, the utility model also comprises a frame, and the mounting seats are fixedly arranged on the left side and the right side of the frame or are integrally formed on the left side and the right side of the frame.
As a further improvement of the utility model, a gasket is arranged between the nut and the mounting seat, and the gasket is sleeved on the wheel shaft. Through adopting above-mentioned technical scheme, the gasket is favorable to the nut to firmly act on the mount pad, and increase lifting surface area also can prevent that the mount pad from damaging.
As a further improvement, the utility model also comprises a frame, and the mounting seats are fixedly arranged on the left side and the right side of the frame or are integrally formed on the left side and the right side of the frame. Through adopting above-mentioned technical scheme, the mount pad can set up with frame integrated into one piece or phase separation, is favorable to the installation of shaft.
The utility model discloses the structure is ingenious, utilizes the epaxial external splines of wheel and the setting of first fastening characteristic like internal spline on the mount pad, accomplishes the ingenious fixed to the shaft to utilize the nut to carry out the lock solid to the shaft, prevent that it from breaking away from in the mount pad. On one hand, the service life of the wheel axle is prolonged, and on the other hand, the wheel axle is convenient to mount.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
Fig. 1 is a schematic structural view of a balance car according to an embodiment of the present invention.
Fig. 2 is a schematic structural view of another angle of the balance car according to an embodiment of the present invention.
Fig. 3 is an enlarged schematic view of a structure of an I portion of the balance car according to an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a housing of the balance car according to an embodiment of the present invention.
In the figure: the wheel assembly comprises a shell 11, a mounting seat 12, a wheel 13, a nut 16, a first through hole 121, an axle 131, an external thread part 132 and a third through hole 133.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the objects of the present invention, the following buckling drawings and preferred embodiments are described in detail below with reference to the following detailed description of the embodiments, structures, features and effects of the present invention.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus should not be considered limiting.
In the present application, the left-right direction refers to the left-right direction as shown in fig. 1, the up-down direction refers to the up-down direction when the balance car is placed on a horizontal plane, the up-down direction is not necessarily the vertical direction, the oblique up-down direction is also understood as the up-down direction of the present application, and the front-back direction refers to the direction in which the balance car moves forward and backward. In the present application, the inner side refers to a direction near the middle of the housing, and the outer side refers to a direction near the wheels on both sides.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral connections; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Example 1
An axle fixing device for a balance car is used for fixing an axle 131 of a wheel 13 of the balance car, and is characterized by comprising an installation base 12 and a nut 16, wherein the installation base 12 is provided with a first through hole 121 for the axle 131 to penetrate through, a first fastening feature matched with the shape of the axle 131 is arranged in the first through hole 121, the nut 16 is used for being connected to the axle 131 of the wheel in a threaded manner, and the nut 16 is located on the inner side of the installation base 12. In this embodiment, the first fastening feature is an internal spline. The hole direction of the first through hole is arranged in the left-right direction.
Example 2
The wheel of the balance car adopts the axle fixing device for the balance car of any one of the above aspects, and the axle 131 of the wheel 13 is provided with a second fastening characteristic matched with the first fastening characteristic.
The second fastening feature is an external spline. The axle 131 of the wheel 13, and the end of the axle 131 away from the wheel has an external threaded portion 132 for the nut 16 to be attached.
The hub 131 has a third through hole 133 for passing a wire through the hub motor.
Example 3
The balance car, see fig. 1 to 4, includes a housing 11, a mounting seat 12, a wheel 13, a pedal assembly, a controller and a battery, wherein the controller and the battery are mounted in the housing. One wheel 13 is mounted on each of the left and right sides of the housing 11. The wheel axle 131 of the wheel is fixedly installed in the installation seat 12, the installation seat 12 can be installed on the shell 11 through a fastening piece, and the installation seat 12 can also be integrally formed with the shell. The housing 11 shown in the drawings is only a lower shell, the upper shell is not shown, and the pedal assembly can be mounted on the upper shell.
The mounting seat 12 is provided with a first through hole 121 along the left-right direction for the wheel shaft 131 to penetrate. An internal spline is provided in the first through hole 121.
The wheel 13 has a hub motor therein, and the hub 131 of the hub motor is hollow and tubular, that is, the hub has a third through hole 133 along the axial direction for leading out the lead wire in the hub motor. The side of the axle 131 adjacent the wheel has external splines that mate with the internal splines of the first through-hole 121.
The length of the outer spline on the axle 131 is matched with the length of the inner spline on the mounting seat 12, and the length of the axle 131 is longer than the length of the mounting seat 12, that is, the axle 131 is exposed out of the first through hole 121 after penetrating through the first through hole. The end of the external thread part 132 far away from the wheel is exposed out of the first through hole 121, and the side of the external thread part 132 close to the wheel is flush with the side of the mounting seat 12 far away from the wheel. Or a portion of the external threaded portion 132 is threaded within the first through bore 121 to facilitate secure tightening of the nut 16.
The end of the axle 131 remote from the wheel has an externally threaded portion 132 for the threaded connection of the nut 16.
The wheel axle fixing device comprises a mounting seat 12 for penetrating the wheel axle 131 and a nut 16. The structures of the axle 131 and the mounting seat 12 are as described above and are not described in detail.
When the wheel shaft 131 is inserted into the first through hole 121, the male screw portion 132 is inserted into the first through hole 121, and the nut 16 is screwed onto the male screw portion 132. And the nut 16 is screwed, and the nut 16 acts on the mounting seat 12 to complete the fixed mounting of the wheel shaft.
The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above description, and although the present invention has been disclosed by the preferred embodiment, it is not limited to the present invention, and any person skilled in the art can make modifications or changes equivalent to the above embodiments without departing from the scope of the present invention, but all the modifications, changes and modifications of the above embodiments that do not depart from the technical scope of the present invention are within the scope of the present invention.
Claims (10)
1. The utility model provides a shaft fixing device for balance car for the fixed of shaft (131) of balance car wheel (13), its characterized in that includes mount pad (12) and nut (16), offers first through-hole (121) that is used for shaft (131) to penetrate on mount pad (12), be provided with in first through-hole (121) and be used for the first fastening characteristic with the shape assorted of shaft (131), nut (16) are used for threaded connection on shaft (131) of wheel, and nut (16) are located the inboard of mount pad (12).
2. The balance vehicle axle fixture of claim 1 wherein the first fastening feature is an internal spline.
3. The apparatus as claimed in claim 1, wherein the first through hole is formed in a left-right direction.
4. Balance vehicle wheel, characterized in that with the wheel axle fixture according to any of claims 1-3, the wheel axle (131) of the wheel (13) has a second fastening feature matching the first fastening feature.
5. The balance vehicle wheel of claim 4 wherein the second fastening feature is an external spline.
6. Balance vehicle wheel according to claim 4, characterized in that the axle (131) of the wheel (13), the end of the axle (131) remote from the wheel having an externally threaded part (132) for the connection of a nut (16).
7. The balance vehicle wheel according to claim 4, wherein the axle (131) has a third through hole (133) for the exit of a wire in the hub motor.
8. Balance vehicle comprising a balance vehicle wheel according to any of claims 4 to 7, said axle (131) passing through the first through hole (121), the first fastening feature matching the second fastening feature, said nut (16) being screwed onto the axle (131), the nut (16) resting directly or indirectly against the inside of the mounting seat (12).
9. The balance vehicle of claim 8, wherein the male threaded portion (132) of the end of the axle (131) is exposed to the first through hole (121), and the thread of the male threaded portion (132) adjacent to the wheel is flush with the inner side surface of the mounting seat (12) or is located in the first through hole (121).
10. The balance car of claim 8, further comprising a frame (11), wherein the mounting seats (12) are fixedly mounted on or integrally formed with the left and right sides of the frame (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920659910.9U CN209972679U (en) | 2019-05-09 | 2019-05-09 | Wheel shaft fixing device for balance car, balance car wheel and balance car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920659910.9U CN209972679U (en) | 2019-05-09 | 2019-05-09 | Wheel shaft fixing device for balance car, balance car wheel and balance car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209972679U true CN209972679U (en) | 2020-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920659910.9U Active CN209972679U (en) | 2019-05-09 | 2019-05-09 | Wheel shaft fixing device for balance car, balance car wheel and balance car |
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| Country | Link |
|---|---|
| CN (1) | CN209972679U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110171515A (en) * | 2019-05-09 | 2019-08-27 | 浙江阿尔郎科技有限公司 | Balance automobile-used axle fixing device and balance car |
-
2019
- 2019-05-09 CN CN201920659910.9U patent/CN209972679U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110171515A (en) * | 2019-05-09 | 2019-08-27 | 浙江阿尔郎科技有限公司 | Balance automobile-used axle fixing device and balance car |
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