Hub with inner locking device

Abstract

According to the hub with the inner locking device, when an electromagnet is powered on, the electromagnet can generate attraction force on a rear pressing plate, the rear pressing plate moves towards the electromagnet and compresses a spring, and the spring is completely immersed into a spring installation blind hole; at the moment, the rear pressing plate releases the extrusion of the outer rotor end cover connecting plate, and the outer rotor end cover connecting plate between the front pressing movable plate and the rear pressing plate can rotate around the shaft and synchronously rotate along with the hub fixed with the outer rotor end cover connecting plate; when the electromagnet is powered off, the electromagnet releases the attraction force to the rear pressing plate, under the reset action of the spring, the spring stretches out of the spring installation blind hole, the spring extrudes the rear pressing plate, the rear pressing plate is separated from the electromagnet, the rear pressing plate moves towards the front pressing movable plate, the front pressing movable plate and the rear pressing plate clamp the outer rotor end cover connecting plate, and the outer rotor end cover connecting plate cannot rotate. And the hub fixedly connected with the outer rotor end cover connecting plate is in a locked state. According to the utility model, the wheel hub can be conveniently controlled to be rotatable or non-rotatable.

Description

Technical Field

[0001] This utility model relates to a wheel hub with an internal locking device, belonging to the technical field of wheel hub locking devices. Background Technology

[0002] Wheel hubs are typically required to remain stationary when not rotating. However, existing wheel hubs can still rotate under external forces even when stationary. This prevents the hub from achieving true stillness, often causing inconvenience in use. For example, wheel hubs mounted on electric wheelchairs can rotate under external forces even when stationary, making it impossible to prevent the wheels and tires from turning. A locking device is needed to ensure that the wheel hub remains stationary even when not activated and not required to rotate, despite the application of external forces. Utility Model Content

[0003] The purpose of this utility model is to address the problems existing in the prior art by providing a wheel hub with an internal locking device that has a reasonable and simple structure, is easy to manufacture, and is convenient to use.

[0004] The purpose of this utility model is achieved as follows: a wheel hub with an internal locking device, characterized in that: it includes a shaft, a stator core, and a wheel hub, the stator core is placed inside the wheel hub, one end of the shaft extends into the wheel hub and is fixed to the stator core, and the wheel hub rotates around the stator core and the shaft;

[0005] The hub is equipped with a front brake plate, an outer rotor end cover connecting plate, a rear pressure plate, and an electromagnet. Each of these components has a through hole for the front brake plate, the outer rotor end cover connecting plate, the rear pressure plate, and the electromagnet, respectively. These components are fitted onto the shaft through these holes. The outer rotor end cover connecting plate is located between the front brake plate and the rear pressure plate. The electromagnet is located on the side of the rear pressure plate facing away from the outer rotor end cover connecting plate and is fixed to the stator core. The outer periphery of the outer rotor end cover connecting plate is fixed to the hub, and the outer rotor end cover connecting plate rotates with the hub.

[0006] The electromagnet has several blind holes for spring mounting on the side facing the rear pressure plate. A spring is placed in each blind hole. When the spring is in its reset state, one end of the spring is placed in the blind hole and the other end extends out of the blind hole. When the spring is compressed, the spring can be completely submerged in the blind hole.

[0007] The outer diameters of the front pressure brake plate and the rear pressure plate are both larger than the inner diameter of the through hole in the outer rotor end cover connecting plate. The front pressure brake plate is fixed to the electromagnet by bolts, and the bolts pass through the through hole in the outer rotor end cover connecting plate and the rear pressure plate.

[0008] When the electromagnet is energized, it will attract the rear pressure plate. The rear pressure plate moves toward the electromagnet and compresses the spring. The spring is completely submerged in the spring mounting blind hole. At this time, the rear pressure plate releases the pressure on the outer rotor end cover connecting plate. The outer rotor end cover connecting plate between the front pressure brake plate and the rear pressure plate can rotate around the axis and rotate synchronously with the hub that is fixed to the outer rotor end cover connecting plate.

[0009] When the electromagnet is de-energized, it releases its attraction to the rear pressure plate. Under the action of the spring reset, the spring extends out of the spring mounting blind hole and squeezes the rear pressure plate. The rear pressure plate separates from the electromagnet and moves towards the front brake plate. The front brake plate and the rear pressure plate clamp the outer rotor end cover connecting plate, preventing the outer rotor end cover connecting plate from rotating. This locks the hub that is fixedly connected to the outer rotor end cover connecting plate.

[0010] The front pressure brake plate is provided with several bolt through holes, the rear pressure plate is provided with several through holes, and the electromagnet is provided with several bolt locking holes. The bolt through holes, through holes, and bolt locking holes correspond one-to-one. After the bolt is screwed into the bolt through hole, it passes through the hole of the outer rotor end cover connecting plate, and then passes through the through hole before being screwed into the bolt locking hole on the electromagnet, so that the front pressure brake plate is fixed to the electromagnet.

[0011] The outer rotor end cover connecting plate is provided with a brake pad placement groove, in which a brake pad is placed. The thickness of the brake pad is greater than the groove depth of the brake pad placement groove. The two sides of the brake pad protrude from the brake pad placement groove, with one side facing forward to press against the brake plate and the other side facing backward to press against the plate.

[0012] When the electromagnet is de-energized and the rear pressure plate separates from the electromagnet, the rear pressure plate moves towards the front pressure brake plate. The front pressure brake plate and the rear pressure plate clamp the brake pad on the outer rotor end cover connecting plate, preventing the outer rotor end cover connecting plate from rotating.

[0013] The outer rotor end cover connecting plate is fixedly connected to the hub by bolts.

[0014] This invention provides an advanced and scientific method for creating a wheel hub with an internal locking device. When the hub needs to rotate, an electromagnet is energized. The electromagnet attracts the rear pressure plate, causing it to move towards the electromagnet and compress the spring, which is then fully submerged in the spring mounting blind hole. The rear pressure plate then releases its pressure on the outer rotor end cover connecting plate. At this point, the outer rotor end cover connecting plate between the front brake plate and the rear pressure plate can rotate around its axis, rotating synchronously with the wheel hub fixed to it. This unlocks the wheel hub, allowing it to rotate.

[0015] When the hub does not need to rotate and needs to remain stationary, the electromagnet is de-energized. After de-energization, the electromagnet releases its attraction to the rear pressure plate. Under the action of the spring reset, the spring extends out of the spring mounting blind hole and presses the rear pressure plate. At this time, the rear pressure plate separates from the electromagnet and moves towards the front brake plate. The front brake plate and the rear pressure plate clamp the outer rotor end cover connecting plate, preventing the outer rotor end cover connecting plate from rotating. This locks the hub, preventing it from rotating.

[0016] This invention facilitates the locking or locking of wheel hubs.

[0017] In this utility model, a brake pad placement groove is provided on the connecting plate of the outer rotor end cover, and a brake pad is placed in the brake pad placement groove. The brake pad is limited to the front pressure brake plate and the rear pressure plate. By setting the brake pad, the brake pad can be a flexible brake pad, which plays a role in shock absorption and noise reduction.

[0018] This utility model provides a wheel hub with an internal locking device, which facilitates the control of whether the wheel hub can rotate or not, and has great market application and promotion value. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is an exploded view of the front pressure brake plate, the outer rotor end cover connecting plate, the rear pressure plate, and the electromagnet in this utility model.

[0021] In the diagram: 1 Shaft, 2 Stator core, 3 Hub, 4 Front pressure brake plate, 5 Outer rotor end cover connecting plate, 6 Rear pressure plate, 7 Electromagnet, 8 Front pressure brake plate through hole, 9 Outer rotor end cover connecting plate through hole, 10 Rear pressure plate through hole, 11 Electromagnet through hole, 12 Spring mounting blind hole, 13 Spring, 14 Bolt through hole, 15 Through hole, 16 Bolt, 17 Brake pad placement slot, 18 Brake pad. Detailed Implementation

[0022] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] A wheel hub with an internal locking device includes a shaft 1, a stator core 2, and a wheel hub 3. The stator core 2 is placed inside the wheel hub 3, and one end of the shaft 1 extends into the wheel hub 3 and is fixed to the stator core 2. The wheel hub 3 rotates around the stator core 2 and the shaft 1.

[0024] The hub 3 is equipped with a front brake plate 4, an outer rotor end cover connecting plate 5, a rear pressure plate 6, and an electromagnet 7. The front brake plate 4, the outer rotor end cover connecting plate 5, the rear pressure plate 6, and the electromagnet 7 are respectively provided with a front brake plate through hole 8, an outer rotor end cover connecting plate through hole 9, a rear pressure plate through hole 10, and an electromagnet through hole 11. The front brake plate 4, the outer rotor end cover connecting plate 5, the rear pressure plate 6, and the electromagnet 7 are respectively fitted onto the shaft 1 through the through holes of the front brake plate through hole 8, the outer rotor end cover connecting plate through hole 9, the rear pressure plate through hole 10, and the electromagnet through hole 11. The outer rotor end cover connecting plate 5 is located between the front brake plate 4 and the rear pressure plate 6. The electromagnet 7 is located on the side of the rear pressure plate 6 facing away from the outer rotor end cover connecting plate 5, and the electromagnet 7 is fixed to the stator core 2. The outer periphery of the outer rotor end cover connecting plate 5 is fixed to the hub 3, and the outer rotor end cover connecting plate 5 rotates with the rotation of the hub 3.

[0025] On the side of the electromagnet 7 facing the rear pressure plate 6, there are several spring mounting blind holes 12. A spring 13 is placed in each spring mounting blind hole 12. When the spring 13 is reset, one end of the spring 13 is placed in the spring mounting blind hole 12, and the other end extends out of the spring mounting blind hole 12. When the spring 13 is compressed, the spring 13 can be completely submerged in the spring mounting blind hole 12.

[0026] The outer diameters of the front pressure brake plate 4 and the rear pressure plate 6 are both larger than the inner diameter of the through hole 9 on the outer rotor end cover connecting plate 5. The front pressure brake plate 4 is fixed to the electromagnet 7 by bolts, and the bolts pass through the through hole 9 on the outer rotor end cover connecting plate and the rear pressure plate 6.

[0027] When the electromagnet 7 is energized, it will generate a suction force on the rear pressure plate 6. The rear pressure plate 6 moves toward the electromagnet 7 and compresses the spring 13. The spring 13 is completely submerged in the spring mounting blind hole 12. At this time, the rear pressure plate 6 releases the pressure on the outer rotor end cover connecting plate 5. The outer rotor end cover connecting plate 5 between the front pressure brake plate 4 and the rear pressure plate 6 can rotate around the shaft 1 and rotate synchronously with the hub 3 fixed to the outer rotor end cover connecting plate 5.

[0028] When the electromagnet 7 is de-energized, it releases its attraction to the rear pressure plate 6. Under the reset action of the spring 13, the spring 13 extends out of the spring mounting blind hole 12 and squeezes the rear pressure plate 6. The rear pressure plate 6 separates from the electromagnet 7 and moves towards the front pressure brake plate 4. The front pressure brake plate 4 and the rear pressure plate 6 clamp the outer rotor end cover connecting plate 5, preventing the outer rotor end cover connecting plate 5 from rotating. This puts the hub 3, which is fixedly connected to the outer rotor end cover connecting plate 5, in a locked state.

[0029] Furthermore, the front pressure brake plate 4 is provided with several bolt through holes 14, the rear pressure plate 6 is provided with several through holes 15, and the electromagnet 7 is provided with several bolt locking holes. The bolt through holes 14, several through holes 15, and several bolt locking holes correspond one-to-one. After the bolt 16 is screwed into the bolt through hole 14, it passes through the through hole 9 of the outer rotor end cover connecting plate, and then passes through the through hole 15 before being screwed into the bolt locking hole on the electromagnet 7, so that the front pressure brake plate 4 and the electromagnet 7 are fixed.

[0030] A brake pad placement groove 17 is provided on the outer rotor end cover connecting plate 5. A brake pad 18 is placed in the brake pad placement groove 17. The thickness of the brake pad 18 is greater than the groove depth of the brake pad placement groove 17. The two sides of the brake pad 18 protrude out of the brake pad placement groove 17, with one side facing forward to press against the brake plate 4 and the other side facing backward to press against the plate 6.

[0031] When the electromagnet 7 is de-energized and the rear pressure plate 6 separates from the electromagnet 7, the rear pressure plate 6 moves towards the front pressure brake plate 4. The front pressure brake plate 4 and the rear pressure plate 6 clamp the brake pad 18 on the outer rotor end cover connecting plate 5, and the outer rotor end cover connecting plate 5 cannot rotate.

[0032] The outer rotor end cover connecting plate 5 is fixedly connected to the hub 3 by bolts.

Claims

1. A wheel hub with an internal locking device, characterized in that: Includes a shaft (1), a stator core (2), and a hub (3). The stator core (2) is placed inside the hub (3), and one end of the shaft (1) extends into the hub (3) and is fixed to the stator core (2). The hub (3) rotates around the stator core (2) and the shaft (1). The hub (3) is provided with a front pressure brake plate (4), an outer rotor end cover connecting plate (5), a rear pressure plate (6), and an electromagnet (7). The front pressure brake plate (4), the outer rotor end cover connecting plate (5), the rear pressure plate (6), and the electromagnet (7) are respectively provided with a front pressure brake plate through hole (8), an outer rotor end cover connecting plate through hole (9), a rear pressure plate through hole (10), and an electromagnet through hole (11). The front pressure brake plate (4), the outer rotor end cover connecting plate (5), the rear pressure plate (6), and the electromagnet (7) pass through the front pressure brake plate through hole (8). The outer rotor end cover connecting plate through hole (9), the rear pressure plate through hole (10), and the electromagnet through hole (11) are fitted onto the shaft (1); the outer rotor end cover connecting plate (5) is located between the front pressure brake plate (4) and the rear pressure plate (6), the electromagnet (7) is located on the side of the rear pressure plate (6) facing away from the outer rotor end cover connecting plate (5), and the electromagnet (7) is fixed to the stator core (2); the outer periphery of the outer rotor end cover connecting plate (5) is fixed to the hub (3), and the outer rotor end cover connecting plate (5) rotates with the rotation of the hub (3); The electromagnet (7) has several spring mounting blind holes (12) on the side facing the rear pressure plate (6). Each spring mounting blind hole (12) contains a spring (13). When the spring (13) is reset, one end of the spring (13) is placed in the spring mounting blind hole (12), and the other end extends out of the spring mounting blind hole (12). When the spring (13) is compressed, the spring (13) can be completely submerged in the spring mounting blind hole (12). The outer diameters of the front pressure brake plate (4) and the rear pressure plate (6) are both larger than the inner diameter of the through hole (9) of the outer rotor end cover connecting plate (5). The front pressure brake plate (4) is fixed to the electromagnet (7) by bolts, and the bolts pass through the through hole (9) of the outer rotor end cover connecting plate and the rear pressure plate (6). When the electromagnet (7) is energized, the electromagnet (7) will generate a suction force on the rear pressure plate (6). The rear pressure plate (6) moves toward the electromagnet (7) and compresses the spring (13). The spring (13) is completely submerged in the spring mounting blind hole (12). At this time, the rear pressure plate (6) releases the pressure on the outer rotor end cover connecting plate (5). The outer rotor end cover connecting plate (5) between the front pressure brake plate (4) and the rear pressure plate (6) can rotate around the shaft (1) and rotate synchronously with the hub (3) fixed to the outer rotor end cover connecting plate (5). When the electromagnet (7) is de-energized, the electromagnet (7) releases its attraction to the rear pressure plate (6). Under the reset action of the spring (13), the spring (13) extends out of the spring mounting blind hole (12) and the spring (13) squeezes the rear pressure plate (6). The rear pressure plate (6) separates from the electromagnet (7) and moves towards the front pressure brake plate (4). The front pressure brake plate (4) and the rear pressure plate (6) clamp the outer rotor end cover connecting plate (5). The outer rotor end cover connecting plate (5) cannot rotate, so that the hub (3) fixedly connected to the outer rotor end cover connecting plate (5) is in a locked state.

2. A wheel hub with an internal locking device according to claim 1, characterized in that: The front pressure brake plate (4) is provided with several bolt through holes (14), the rear pressure plate (6) is provided with several through holes (15), and the electromagnet (7) is provided with several bolt locking holes. The bolt through holes (14), several through holes (15), and several bolt locking holes correspond one to one. After the bolt (16) is screwed into the bolt through hole (14), it passes through the through hole (9) of the outer rotor end cover connecting plate, and then passes through the through hole (15) before being screwed into the bolt locking hole on the electromagnet (7), so that the front pressure brake plate (4) and the electromagnet (7) are fixed.

3. A wheel hub with an internal locking device according to claim 1, characterized in that: The outer rotor end cover connecting plate (5) is provided with a brake pad placement groove (17), and a brake pad (18) is placed in the brake pad placement groove (17). The thickness of the brake pad (18) is greater than the groove depth of the brake pad placement groove (17). The two sides of the brake pad (18) protrude out of the brake pad placement groove (17), with one side facing forward to press the brake plate (4) and the other side facing backward to press the plate (6). When the electromagnet (7) is de-energized and the rear pressure plate (6) separates from the electromagnet (7), the rear pressure plate (6) moves towards the front pressure brake plate (4). The front pressure brake plate (4) and the rear pressure plate (6) clamp the brake pad (18) on the outer rotor end cover connecting plate (5), and the outer rotor end cover connecting plate (5) cannot rotate.

4. A wheel hub with an internal locking device according to claim 1, characterized in that: The outer rotor end cover connecting plate (5) is fixedly connected to the hub (3) by bolts.

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