Wheel hub capable of emergency support and new energy vehicle

Abstract

The present invention belongs to the technical field of vehicle wheel hubs, and specifically relates to a wheel hub capable of emergency support and a new energy vehicle. The wheel hub comprises a wheel hub body and a support assembly. The outer circumference of the wheel hub body has a wheel groove, with the wheel groove having first and second ends along its axial direction, respectively. The support assembly comprises a ring sleeve that is removably fixed within the wheel groove; the ring sleeve abuts against the first end of the wheel groove, and forms a gap with the second end of the wheel groove. The outer circumference of the ring sleeve is provided with a plurality of slides that can slide and position along the axial direction of the ring sleeve; a stop plate that can rotate and position is mounted on the slides and / or the ring sleeve. In the installed state, the slides can slide until they are completely retracted into the outer circumference of the ring sleeve so that the slides do not fill the gap, and the stop plate can rotate to mate with the connected slide or ring sleeve. In an emergency state, the slide can slide away from the ring sleeve until the gap is filled; the stop plate can rotate to disengage from the connected slide or ring sleeve, and the stop plate protrudes from the outer circumference of the wheel groove.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle wheel hubs, and more particularly to a wheel hub capable of emergency support. Background Art

[0002] A wheel hub consists of a ring-shaped hub body. In some technical solutions, a deep groove is formed on the outer circumference of the hub body, recessed radially toward the center of the hub body. This type of wheel hub with a deep groove is primarily used for sedans and light off-road vehicles. It has a shouldered flange (also known as an end plate) to accommodate the tire bead. This groove structure facilitates the removal and installation of the tire.

[0003] When a wheel assembled with the aforementioned hub experiences a tire blowout, the inner tube loses air and becomes unable to support the outer tube. The inner circumference of the outer tube can easily slip into the wheel groove, which, combined with braking and steering, can cause the outer tube to partially or completely detach from the hub. In this situation, the outer circumference of the hub directly contacts the ground, resulting in poor steering and braking forces, making it easy for the vehicle to lose control, leading to serious consequences.

[0004] To prevent the tire from slipping into the wheel hub's groove in the event of a blowout, some technical solutions incorporate a tire blowout emergency support device that is installed in the wheel hub's groove. This device prevents the inner circumference of the tire from slipping into the groove. However, in these technical solutions, the device either completely fills the groove, rendering it inaccessible for tire installation, or incompletely fills the groove, leaving the tire potentially vulnerable to slipping into the gaps, exposing the wheel hub and causing it to contact the ground.

[0005] In addition, in the existing technical solution, the height of the tire blowout emergency device does not protrude from the wheel groove, thereby preventing it from damaging the inner tube of the tire. However, this structural setting is not convenient for further stopping the outer tire, and is not convenient for further limiting the outer tire from sliding along the wheel hub. Summary of the Invention

[0006] The purpose of the present invention is to overcome or at least alleviate the deficiencies of the above-mentioned prior art and to solve at least one of the above-mentioned technical problems.

[0007] In order to achieve the above-mentioned purpose, the present invention provides a wheel hub with emergency support, comprising a wheel hub body and a support assembly, wherein the outer peripheral surface of the wheel hub body has a wheel groove, and the two ends of the wheel groove along its own axial direction are respectively a first end and a second end, and the support assembly comprises a ring sleeve, which is detachably fixed in the wheel groove. The ring sleeve abuts against the first end of the wheel groove, and along the axial direction of the wheel hub body, the width of the ring sleeve is smaller than the width of the wheel groove, so that a gap is formed between the ring sleeve and the second end of the wheel groove. The outer peripheral surface of the ring sleeve is provided with a plurality of slides, which can slide and position along the axial direction of the ring sleeve. A limit plate that can rotate and position is installed on the slide and / or the ring sleeve, and the limit plate is arc-shaped, and the rotation axis of the limit plate is parallel to the axial direction of the ring sleeve.

[0008] The support assembly has an installed state and an emergency state. In the installed state, the slide can slide until it is completely retracted against the outer circumference of the ring sleeve, so that the slide does not fill the gap. The stop plate can rotate until it is in contact with the connected slide or ring sleeve, and the ring sleeve, stop plate, and slide do not protrude from the outer circumference of the wheel groove. In the emergency state, the slide can slide away from the ring sleeve until the slide and the second end of the wheel groove come into contact, thereby filling the gap. The stop plate can rotate to disengage from the connected slide or ring sleeve, protruding from the outer circumference of the wheel groove and not protruding from the outermost circumference of the wheel hub body.

[0009] The present invention also provides a new energy vehicle, comprising the above-mentioned wheel hub capable of emergency support.

[0010] The beneficial effects of one or more of the above technical solutions are:

[0011] In this solution, a ring sleeve is installed in the wheel groove of the hub body. The wheel groove has two axial ends, a first end and a second end. The ring sleeve abuts against the first end of the wheel groove. The width of the ring sleeve is smaller than the width of the wheel groove, thus forming a gap between the ring sleeve and the second end of the wheel groove. In other words, the ring sleeve of this solution does not completely fill the wheel groove. The gap between the wheel groove and the ring sleeve can still assist in the installation of the outer tire, providing convenience for the installation of the outer tire.

[0012] Additionally, a plurality of slides are provided on the outer circumference of the annulus, capable of sliding and positioning along the axial direction of the annulus. This arrangement facilitates the support assembly having two operating states. In the installed state, the slides retract into the annulus and do not fill the gap, thereby preventing the installation of the tire. In the supported state, the slides can slide axially along the annulus to fill the gap. At this point, the entire wheel groove is axially filled with the annulus and slides, preventing the tire from sliding into the wheel groove. This reduces the probability of the outer periphery of the wheel hub breaking away from the protection of the tire and directly contacting the ground, thereby reducing the probability of the vehicle losing control.

[0013] Finally, in this solution, a limit plate is rotatably connected to the slide or ring. In the installed state, the limit plate abuts the slide or ring to which it is connected. In the supported state, the limit plate rotates and protrudes from the outer periphery of the wheel groove. This facilitates the use of the limit plate protruding from the wheel groove to further limit the axial sliding of the tire along the wheel hub after a tire blowout, reducing the probability of the tire detaching from the wheel hub.

[0014] Moreover, the rotation axis of the limit plate is parallel to the axial direction of the ring sleeve. At this time, the external force of the outer tire moving along the axial direction of the wheel hub is parallel to the axial direction of the limit plate, which basically does not drive the limit plate to rotate. Therefore, it is convenient to use a smaller driving force to keep the limit plate protruding from the outer contour of the wheel groove and limit the slippage of the outer tire. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the hub body in Example 1 of the present invention;

[0016] Figure 2 This is a schematic front view of the overall structure in the installed state in Example 1 of the present invention;

[0017] Figure 3 yes Figure 2 A schematic diagram of the structure of the middle C part;

[0018] Figure 4 yes Figure 2 Sectional view from the AA direction;

[0019] Figure 5 1 is a schematic structural diagram of the overall structure in the supporting state in Example 1 of the present invention;

[0020] Figure 6 yes Figure 4 A schematic diagram of the structure of the D part;

[0021] Figure 7 yes Figure 5 A schematic diagram of the structure of part E in the middle;

[0022] Figure 8 yes Figure 5 Cross-sectional view from the middle BB direction;

[0023] Figure 9 yes Figure 8 Schematic diagram of the enlarged structure of part F.

[0024] Figure numerals: 1, hub body; 101, end plate; 102, annular groove; 103, wheel groove; 1031, first end; 1032, second end; 1033, gap; 104, ring sleeve; 105, limit plate; 106, groove; 107, first electromagnetic component; 108, second electromagnetic component; 109, slide seat; 110, inner hole; 111, slider; 112, second spring; 113, first spring. DETAILED DESCRIPTION

[0025] The following describes exemplary embodiments of the present invention with reference to the accompanying drawings. It should be understood that these specific descriptions are only used to teach those skilled in the art how to implement the present invention, and are not intended to exhaust all possible embodiments of the present invention, nor to limit the scope of the present invention.

[0026] The outer ring of the wheel hub in this application is used to fit the tire, the inner ring of the wheel hub is used to connect with the rim, and the inner ring of the rim is used to connect with the inner hub on which the axle is installed. In some other technical solutions, the wheel hub is also referred to as the wheel rim.

[0027] Example 1

[0028] Reference Figures 1-9 One or more embodiments of the present invention provide a wheel hub capable of emergency support, comprising a wheel hub body 1 and a support assembly. The outer circumferential surface of the wheel hub body 1 has a wheel groove 103, with the two ends of the wheel groove 103 along its own axial direction being a first end 1031 and a second end 1032, respectively. The support assembly comprises a ring sleeve 104, which is detachably fixed in the wheel groove 103. The ring sleeve 104 abuts against the first end 1031 of the wheel groove 103. Along the axial direction of the wheel hub body 1, the width of the ring sleeve 104 is smaller than the width of the wheel groove 103, so that a gap 1033 is formed between the ring sleeve 104 and the second end 1032 of the wheel groove 103. A plurality of slide seats 109 are provided on the outer circumferential surface of the ring sleeve 104, which can slide and position along the axial direction of the ring sleeve 104. A rotatable and positionable limiting plate 105 is mounted on the sliding seat 109 and / or the ring sleeve 104 . The limiting plate 105 is arc-shaped, and the rotation axis of the limiting plate 105 is parallel to the axial direction of the ring sleeve 104 .

[0029] In this embodiment, the wheel groove 103 is offset axially along the hub body 1. Specifically, the first end 1031 of the wheel groove 103 is located near the center of the hub body 1, and the second end 1032 of the wheel groove 103 is located near the end surface of the hub body 1. This offset arrangement of the wheel groove 103 facilitates quick entry of one end of the tire's inner ring into the wheel groove 103 when the tire moves axially along the hub. This offset arrangement of the wheel groove 103 further enhances tire assembly and disassembly convenience.

[0030] Specifically, the hub body 1 has two annular end plates 101 at either end along its axial direction. An annular groove 102 is formed between the two end plates 101, and the tire is mounted within the annular groove 102. During use, the inner ring surface of the tire, a collar 104, contacts the inner surface of the annular groove 102. The end plates 101 limit the tire's axial movement along the hub body 1. The inner diameter of the collar 104 is equal to the outer diameter of the wheel groove 103, and the outer diameter of the collar 104 is equal to the inner diameter of the annular groove 102. The inner ring of the hub body 1 forms an inner hole 110 for mounting the wheel rim.

[0031] Specifically, in this embodiment, six slides 109 are evenly distributed on the outer circumference of the ring 104. In other structural arrangements, the number of slides 109 on the ring 104 can be four, eight, or other numbers. Alternatively, in some embodiments, the slides 109 on the ring 104 can be unevenly distributed along the circumference of the ring, which can be determined by those skilled in the art.

[0032] In one specific structural form, the ring sleeve 104 includes a first half ring and a second half ring arranged separately, with one end of the first half ring and the second half ring being rotatably connected and the other end being detachably connected via a buckle. In other structural arrangements, both ends of the first half ring and the second half ring are detachably connected via a buckle.

[0033] Alternatively, in other structural arrangements, the ring sleeve 104 here includes three or four separately arranged arc-shaped plates, and the multiple arc-shaped plates are sequentially connected end to end through buckles to form the ring sleeve 104.

[0034] The support assembly has an installed state and an emergency state. In the installed state, the slide 109 can slide until it is completely retracted against the outer circumference of the ring 104, so that the slide 109 does not fill the gap 1033. The limit plate 105 can rotate until it is in contact with the connected slide 109 or ring 104, and the ring 104, the limit plate 105, and the slide 109 do not protrude from the outer circumference of the wheel groove 103. In the emergency state, the slide 109 can slide away from the ring 104 until it abuts against the second end 1032 of the wheel groove 103, thereby filling the gap 1033. The limit plate 105 can rotate until it is separated from the connected slide 109 or ring 104, protruding from the outer circumference of the wheel groove 103 and not protruding from the outermost circumference of the hub body 1.

[0035] The above-mentioned arrangement of the sliding seat 109 capable of sliding axially along the hub body 1 can prevent the sliding seat 109 from completely filling the wheel groove 103, thereby preventing the wheel groove 103 from providing convenience for the tire installation process. It can also prevent the sliding seat 109 from not completely filling the wheel groove 103, which may cause the inner ring of the outer tire to slide into the wheel groove 103, thereby partially or completely exposing the outer ring surface of the hub body 1.

[0036] Specifically, when installed, the slide 109 slides axially parallel to the annulus 104. Along the radial direction of the annulus 104, the projection of the slide 109 does not extend beyond the projection of the annulus 104. At this point, the annulus 104 occupies half the width of the original wheel groove 103, but the portion at the other end of the width of the wheel groove 103 forms the aforementioned gap 1033. This gap 1033 can be sealed or unsealed by the sliding movement of the slide 109.

[0037] As mentioned above, the limit plate 105 is rotatably mounted on the ring sleeve 104 or the slide seat 109 , and the rotation axis of the limit plate 105 is parallel to the axial direction of the hub body 1 .

[0038] In this embodiment, the outer circumference of the ring 104 is provided with an arc-shaped groove 106 coaxial with the ring. At least one end of the limit plate 105 is inserted into the groove 106 and is rotatably connected to the ring 104. A first spring 113 is provided between the limit plate 105 and the bottom wall of the groove 106 to provide elastic force for the limit plate 105 to rotate and disengage from the ring 104. The slide 109 can slide to press the limit plate 105 against the groove 106 or release the limit plate 105.

[0039] Specifically, the shape and size of the groove 106 here are adapted to the stop plate 105. When the stop plate 105 rotates into the groove 106, the stop plate 105 seals the groove 106. In this embodiment, the arcuate surface of the groove 106 is concentric with the ring 104. When the stop plate 105 is fully rotated into the groove 106, the outer arcuate surface of the stop plate 105 is flush with the outer circular side surface of the ring 104.

[0040] In some other structural arrangements, the groove 106 and the ring sleeve 104 may not be concentric. In this case, the highest point of the limiting plate 105 filled in the groove 106 does not protrude from the outer circumferential surface of the ring sleeve 104 .

[0041] Specifically, the first spring 113 is disposed between the inner arc surface of the stop plate 105 and the bottom wall of the groove 106. One end of the first spring 113 is fixed to the stop plate 105, and the other end is fixed to the bottom wall of the groove 106. More specifically, one or more first springs 113 are installed between each stop plate 105 and the adjacent groove 106. When multiple first springs 113 are installed between the stop plate 105 and the groove 106, the multiple first springs 113 are arranged sequentially along the axial direction of the ring 104 and the hub body 1.

[0042] In some technical solutions, the first spring 113 is only used to drive the limit plate 105 to rotate in a direction away from the ring 104. In order to achieve the rotation of the limit plate 105 toward the groove 106 and retract the limit plate 105 into the groove 106, an electromagnet assembly can be installed between the inner arc surface of the limit plate 105 and the bottom wall of the groove 106. The two parts of the electromagnet assembly are respectively fixed to the limit plate 105 and the groove 106. The power supply wire of the electromagnet assembly extends to the inner ring surface of the hub body 1, and the end of the power supply wire is connected to the power supply socket to facilitate connection to an external power source.

[0043] In this embodiment, a second spring 112 is provided between the slide 109 and the collar 104 to provide an elastic force to the slide 109 to move toward the second end 1032 of the wheel groove 103. Another electromagnet assembly is installed between the slide 109 and the collar 104. The electromagnet assembly is used to provide a suction force to the slide 109 to move toward the first end 1031 of the wheel groove 103. Specifically, the electromagnet assembly between the slide 109 and the collar 104 includes a first electromagnetic component 107 and a second electromagnetic component 108. The first electromagnetic component 107 is fixed to the slide 109, and the second electromagnetic component 108 is fixed to the collar 104.

[0044] Specifically, the second spring 112 is provided between one end of the ring sleeve 104 close to the slide 109 and the first end 1031 of the wheel groove 103. One end of the second spring 112 is fixed to the slide 109, and the other end is fixed to the first end 1031 of the wheel groove 103.

[0045] In this embodiment, the electromagnet assembly between the slide 109 and the ring sleeve 104 is connected to a wire, and the inner ring surface of the hub is provided with a power plug passing through it, and the wire is connected to the power plug to receive external power.

[0046] For details, see Figure 3 、 Figure 5 and Figure 7 Here, the part of the structure of the limit plate 105 close to the rotation connection position between the limit plate 105 and the ring sleeve 104 is below the sliding track of the slide 109, and the installation position of the second spring 112 does not affect the rotation of the limit plate 105. Figure 7 When the right end slides toward the left end, the slide 109 is released from the pressing force 4 on the limit plate 105, and the limit plate 105 rotates to disengage from the groove 106. On the contrary, when the slide 109 slides from left to right and retracts onto the surface of the ring 104, the slide 109 is above the limit plate 105, and the slide 109 and the limit plate 105 stop. At this time, the slide 109 prevents the limit plate 105 from rotating to disengage from the groove.

[0047] In this embodiment, all the slides 109 are fixed to the same connecting ring (not shown in the figure), and the connecting ring is coaxial with the ring sleeve 104 so that all the slides 109 slide synchronously along the axial direction of the ring sleeve 104.

[0048] Specifically, the inner surface of the connecting ring is fixed to the outer surface of the slide 109 by bolts or adhesive. Alternatively, the end surface of the slide 109 near the second end 1032 of the wheel groove 103 can be fixed to the end surface of the connecting ring. More specifically, the connecting ring here is a monolithic structure or a ring structure formed by splicing multiple half rings.

[0049] In this embodiment, a sliding groove is provided on the outer side surface of the ring sleeve 104 , and the extending direction of the sliding groove is parallel to the axial direction of the ring sleeve 104 . A slider 111 is installed in the sliding groove, and the slider 111 is fixed to the sliding seat 109 .

[0050] Specifically, the chute here is a T-slot or a dovetail slot, and correspondingly, the slider 111 is a T-slot or a dovetail slider 111. More specifically, the chute penetrates the outer surface of the annular sleeve 104 to facilitate a fixed connection between the slider 111 in the chute and the slide seat 109 on the surface of the annular sleeve 104. More specifically, the slide seat 109 and the slider 111 are fixed by bolts or adhesive.

[0051] In this embodiment, the side surface of the sliding seat 109 facing away from the ring sleeve 104 is an arc surface, and the arc surface coincides with the axis of the ring sleeve 104 .

[0052] In some other embodiments, the side of the slide 109 facing away from the ring sleeve 104 can be a plane or a curved surface of other shapes, which can be configured by those skilled in the art.

[0053] In this embodiment, the hub body 1 has multiple first holes (not shown in the figure), the first holes are arranged in the wheel groove 103, and the ring sleeve 104 is provided with second holes (not shown in the figure). The first holes and the second holes are connected by bolts after docking.

[0054] Specifically, the number of the first holes and the second holes are respectively plural and the number of the first holes and the second holes are the same. The first holes and the second holes are respectively evenly distributed along the circumference of the ring sleeve 104 and the hub body 1 .

[0055] This embodiment also provides a new energy vehicle, which has a chassis on which the above-mentioned emergency support wheel hub is installed.

[0056] Working Principle: During the initial stage of tire installation, the slide 109 slides until it is completely retracted onto the outer circumference of the collar 104, so that the slide 109 does not fill the gap 1033. The stop plate 105 rotates until it is in contact with the connected slide 109 or collar 104. The collar 104, stop plate 105, and slide 109 do not protrude beyond the outer circumference of the wheel well 103.

[0057] After the tire is installed, the electromagnet assembly between the slide 109 and the collar 104 is de-energized, and the slide 109, driven by the elastic force of the second spring 112, slides away from the collar 104 until the slide 109 abuts against the second end 1032 of the wheel groove 103, thereby filling the gap 1033. At this point, the stop plate 105 loses the abutment of the slide 109, and the elastic force of the first spring 113 drives the stop plate 105 to rotate until it is separated from the slide 109 or collar 104 connected thereto. The stop plate 105 protrudes from the outer periphery of the wheel groove 103, and the stop plate 105 does not protrude from the outermost periphery of the hub body 1.

[0058] Example 2

[0059] The structural setting of this embodiment is basically the same as that of Example 1, and also provides a wheel hub and new energy vehicle that can be supported in an emergency. The difference is that: in this embodiment, a limit plate 105 is rotatably installed on the surface of at least one of the slides 109, and the outer side surface of the slide 109 is provided with a second arc-shaped groove coaxial with itself, and at least one end of the limit plate 105 is inserted into the second groove and is rotatably connected to the slide 109.

[0060] In this embodiment, a spring is provided between the limit plate 105 and the slide 109 to provide elastic force for the limit plate 105 to rotate away from the slide 109. A second electromagnet assembly is provided between the limit plate 105 and the slide 109 to provide a magnetic force for the limit plate 105 to be attracted to the slide 109.

[0061] Of course, the present invention is not limited to the above embodiments. Those skilled in the art can make various combinations and modifications to the above embodiments of the present invention under the guidance of the present invention without departing from the scope of the present invention.

Claims

1. A wheel hub capable of emergency support, characterized in that: The wheel hub comprises a wheel hub body and a support assembly, wherein the outer peripheral surface of the wheel hub body has a wheel groove, and the two ends of the wheel groove along its own axial direction are respectively a first end and a second end, and the support assembly comprises a ring sleeve, which is detachably fixed in the wheel groove; the ring sleeve abuts against the first end of the wheel groove, and along the axial direction of the wheel hub body, the width of the ring sleeve is smaller than the width of the wheel groove, so that a gap is formed between the ring sleeve and the second end of the wheel groove; the outer peripheral surface of the ring sleeve is provided with a plurality of slide seats, which can slide and position along the axial direction of the ring sleeve; a limit plate that can be rotated and positioned is installed on the ring sleeve, and the limit plate is arc-shaped, and the rotation axis of the limit plate is parallel to the axial direction of the ring sleeve; The support assembly has an installed state and an emergency state. In the installed state, the slide can slide to be completely retracted on the outer peripheral surface of the ring sleeve so that the slide does not fill the gap, the limit plate can be rotated to fit with the connected ring sleeve, and the ring sleeve, the limit plate and the slide do not protrude from the outer peripheral contour of the wheel groove; In an emergency state, the slide can slide away from the ring until the slide abuts against the second end of the wheel groove to fill the gap; the limit plate can rotate to separate from the ring connected thereto, the limit plate protrudes from the outer peripheral contour of the wheel groove, and the limit plate does not protrude from the outermost peripheral contour of the hub body; The outer circumference of the ring sleeve is provided with an arc-shaped groove coaxial with the ring sleeve, at least one end of the limit plate is inserted into the groove and is rotatably connected to the ring sleeve, and a first spring is provided between the limit plate and the bottom wall of the groove to provide elastic force for the limit plate to rotate out of the ring sleeve; the slide seat can slide to press the limit plate against the groove or release the limit plate; A second spring is provided between the slide and the ring sleeve to provide elastic force to the slide to move toward the second end of the wheel groove. An electromagnet assembly is installed between the slide and the ring sleeve, and the electromagnet assembly is used to provide suction force to the slide to move toward the first end of the wheel groove.

2. A wheel hub capable of emergency support, characterized in that: The wheel hub comprises a wheel hub body and a support assembly, wherein the outer peripheral surface of the wheel hub body has a wheel groove, and the two ends of the wheel groove along its own axial direction are respectively a first end and a second end, and the support assembly comprises a ring sleeve, which is detachably fixed in the wheel groove; the ring sleeve abuts against the first end of the wheel groove, and along the axial direction of the wheel hub body, the width of the ring sleeve is smaller than the width of the wheel groove, so that a gap is formed between the ring sleeve and the second end of the wheel groove; the outer peripheral surface of the ring sleeve is provided with a plurality of slide seats, which can slide and position along the axial direction of the ring sleeve; a limit plate that can be rotated and positioned is installed on the slide seat, and the limit plate is arc-shaped, and the rotation axis of the limit plate is parallel to the axial direction of the ring sleeve; The support assembly has an installed state and an emergency state. In the installed state, the slide can slide to be completely retracted on the outer peripheral surface of the ring sleeve so that the slide does not fill the gap, the limit plate can be rotated to fit with the connected slide, and the ring sleeve, the limit plate and the slide do not protrude from the outer peripheral contour of the wheel groove; In an emergency state, the slide can slide in a direction away from the ring sleeve until the slide abuts against the second end of the wheel groove to fill the gap; the limit plate can rotate to separate from the slide connected thereto, the limit plate protrudes from the outer peripheral contour of the wheel groove, and the limit plate does not protrude from the outermost peripheral contour of the hub body; The limit plate is rotatably mounted on the surface of at least one of the slides, and the outer side surface of the slide is provided with a second arc-shaped groove coaxial with the slide, and at least one end of the limit plate is inserted into the second groove and is rotatably connected to the slide; a spring is provided between the limit plate and the slide to provide elastic force for the limit plate to rotate and separate from the slide; a second electromagnet assembly is provided between the limit plate and the slide, and the second electromagnet assembly is used to provide a magnetic force for the limit plate to be attracted to the slide; A second spring is provided between the slide and the ring sleeve to provide elastic force to the slide to move toward the second end of the wheel groove. An electromagnet assembly is installed between the slide and the ring sleeve, and the electromagnet assembly is used to provide suction force to the slide to move toward the first end of the wheel groove.

3. The wheel hub capable of emergency support according to claim 1 or 2, characterized in that: The electromagnet assembly is connected to a wire, and the inner ring surface of the hub is provided with a power plug penetrating the hub, and the wire is connected to the power plug to receive external power.

4. The wheel hub capable of emergency support according to claim 1 or 2, characterized in that: All the slides are fixed to the same connecting ring, and the connecting ring is coaxial with the ring sleeve, so that all the slides can slide synchronously along the axial direction of the ring sleeve.

5. The wheel hub capable of emergency support according to claim 1 or 2, characterized in that: The outer side surface of the ring sleeve is provided with a sliding groove, the extension direction of the sliding groove is parallel to the axial direction of the ring sleeve, a slider is installed in the sliding groove, and the slider is fixed to the sliding seat; and / or, the side of the sliding seat away from the ring sleeve is an arc surface, and the arc surface coincides with the axis of the ring sleeve.

6. The wheel hub capable of emergency support according to claim 1 or 2, characterized in that: The hub body has a plurality of first holes, which are arranged in the wheel groove. The ring sleeve is provided with second holes, and the first holes and the second holes are connected by bolts after being butted against each other.

7. A new energy vehicle, characterized in that: The invention comprises a hub capable of emergency support according to any one of claims 1 to 6.

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