Integrated electric wheel for wheelchair

Abstract

The present application relates to wheelchair electric wheel manufacturing technical field, specifically to an integrated wheelchair electric wheel, an integrated wheelchair electric wheel, including wheel body and wheel core assembly, the wheel body rotation is arranged on the wheel core assembly, the wheel core assembly includes drive motor, the drive motor includes rotor output shaft, further including transmission disc, the rotor output shaft is connected with transmission disc transmission, the wheel body is equipped with the clutch part, the clutch part includes movable lock and clutch switch connected with the movable lock transmission, the clutch switch is used for controlling the movable lock and the transmission disc is connected and separated, the wheel core assembly further includes electromagnetic brake, the electromagnetic brake can realize the rotor output shaft brake, one side of the wheel body is equipped with the positioning part for connecting with the wheelchair. Integrated motor, brake function, convenient existing manual wheelchair is refitted into electric wheelchair.

Description

Technical Field

[0001] This invention relates to the field of electric wheelchair wheelchair manufacturing technology, and specifically to an integrated electric wheelchair wheelchair wheelchair. Background Technology

[0002] Currently, manual and electric wheelchairs are often sold separately. Therefore, if a customer has already purchased a manual wheelchair and wants to use an electric one, they must buy a new electric wheelchair, leaving the manual wheelchair unused and wasteful. The biggest hardware difference between electric and manual wheelchairs lies in the installation of the drive motor in the wheels and the transmission connection between the motor and the wheels. In existing electric wheelchairs, the integration of the motor and wheels is not high; the motor is mounted externally on the wheels and connected to them via a transmission assembly. Therefore, converting a manual wheelchair to an electric wheelchair requires a high level of skill and is not suitable for the average user. Summary of the Invention

[0003] To overcome the shortcomings of the prior art, the present invention provides an integrated electric wheelchair wheel, which integrates a motor and braking function, making it convenient to convert existing manual wheelchairs into electric wheelchairs.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solution:

[0005] An integrated electric wheelchair wheelchair includes a wheel body and a wheel core assembly. The wheel body is rotatably mounted on the wheel core assembly. The wheel core assembly includes a drive motor, which includes a rotor output shaft. The wheel core assembly also includes a transmission disk, and the rotor output shaft is drively connected to the transmission disk.

[0006] The wheel body is provided with a clutch part, which includes a movable locking member and a clutch switch that is throttledly connected to the movable locking member. The clutch switch is used to control the connection and separation of the movable locking member from the transmission disc.

[0007] The wheel core assembly also includes an electromagnetic brake, which is capable of braking the rotor output shaft.

[0008] The wheel has a positioning part on one side for connecting with the wheelchair.

[0009] Based on the above structure, the principle of the integrated electric wheelchair wheelchair is as follows: When the movable locking member is connected to the transmission disc, the wheel body and the rotor output shaft are connected by transmission, and the rotor output shaft can drive the wheel body to rotate. At this time, the integrated electric wheelchair wheelchair is in electric mode. When the drive motor is turned off or the power supply is completely disconnected, the electromagnetic brake can lock the rotor output shaft to achieve braking in electric mode. If the clutch switch separates the movable locking member from the transmission disc, the rotation of the wheel body and the rotor output shaft is separated, and the rotor output shaft cannot drive the wheel body to rotate. The wheel body needs to be manually turned to rotate, and this state is in manual mode. Based on the above device, the integrated electric wheelchair wheelchair of this application integrates the wheel body, drive motor, and electromagnetic brake into one unit. By sharing a power switch between the drive motor and the electromagnetic brake, braking can be achieved upon power failure, and the electric and manual modes can be switched. As an independent wheelchair accessory, it can be installed on an existing manual wheelchair through the positioning part, making it convenient to convert an existing manual wheelchair into an electric wheelchair. It has the characteristics of easy installation and wide applicability.

[0010] Furthermore, in the integrated wheelchair electric wheelchair described in this application, the transmission disk is generally annular, the wheel body is provided with a positioning cavity adapted to the outer diameter of the transmission disk, the transmission disk is disposed in the positioning cavity, the inner side wall of the transmission disk is provided with transmission teeth, and the rotor output shaft and the transmission teeth are connected by gear transmission.

[0011] Furthermore, in the integrated electric wheelchair wheelchair described in this application, the transmission disc has a limiting cavity, and the movable locking element is a locking tongue disposed outside the positioning cavity. The locking tongue has a locking head adapted to the shape of the limiting cavity, and corresponding to the locking head, the positioning cavity has a through cavity. The clutch switch can control the locking tongue to switch between a first position and a second position. When the locking tongue switches to the first position, the locking head passes through the through cavity and enters the limiting cavity. When the locking tongue switches to the second position, the locking head is outside the limiting cavity. As a preferred embodiment of this application, when the locking tongue is in the first position, the transmission disc is locked by the locking tongue, and the wheel body and the transmission disc are synchronously driven by the rotation of the rotor output shaft. When the locking tongue is in the second position, the transmission disc and the locking tongue are separated, and the rotation of the rotor output shaft and the rotation of the wheel body do not interfere with each other. At this time, the rotor output shaft cannot control the rotation of the wheel body, and the wheel body is in manual mode.

[0012] Furthermore, in the integrated electric wheelchair wheelchair described in this application, the limiting cavity is disposed on the outer wall of the transmission disc, the wheel body is provided with a disc sleeve, the positioning cavity is disposed on the disc sleeve, the disc sleeve is provided with a flange on the radially outer side, the locking tongue is rotatably disposed on the flange, and a pressure plate is provided on the side of the locking tongue away from the lock head. The clutch switch includes an elastic reset member and a movable pressure block, the elastic reset member and the pressure block are respectively disposed on the inner and outer sides of the pressure plate. The elastic reset member is used to press the pressure plate outward to place the locking tongue in a first position, and the pressure block is used to press the pressure plate inward to place the locking tongue in a second position. As a preferred embodiment of this application, the rotation center of the locking tongue is disposed between the lock head and the pressure plate, and the elastic reset member and the pressure block are respectively disposed on both sides of the pressure plate. In the reset state, the elastic reset member radially supports the pressure plate outward to place the locking tongue in the first position. Optionally, the pressure block can be mounted on a screw, the screw is disposed on the outer side of the disc sleeve, and rotating the screw causes the pressure block to move axially, realizing the pressing and disengaging of the pressure block on the pressure plate.

[0013] Furthermore, in the integrated electric wheelchair wheelchair described in this application, the clutch switch further includes a rotating cover rotatably disposed on the outer side of the wheel body, a pressure block disposed on the inner side of the rotating cover, and a guide surface of a preset shape provided on the inner side of the pressure block. The elastic reset member presses the pressure plate against the guide surface. Rotating the rotating cover by a preset angle allows the guide surface to push the pressure plate, causing the latch to switch between a first position and a second position. As a preferred embodiment of this application, the pressure block is disposed on the inner wall of the rotating cover, and the guide surface disposed on the inner side of the pressure block integrally forms an inner cam. Specifically, the two ends of the guide surface correspond to the low and high positions of the inner cam. Rotating the rotating cover until the low position of the guide surface is against the pressure plate causes the latch to rotate to the first position; rotating the rotating cover until the high position of the guide surface is against the pressure plate causes the latch to rotate to the second position. Furthermore, in the integrated electric wheelchair wheelchair described in this application, the wheel core assembly includes a housing assembly, the drive motor is disposed within the housing cavity of the housing assembly, the wheel body has a wheel core shell at its center, and the housing assembly is disposed within the housing cavity of the wheel core shell.

[0014] Furthermore, in the integrated electric wheelchair wheelchair described in this application, the disc sleeve is installed on the axial outer side of the wheel core shell. The housing assembly includes a motor housing, and the stator of the drive motor is installed inside the motor housing. A gear shaft is rotatably provided on the side of the motor housing near the transmission disc, and a pair of transmission gears are provided on the gear shaft. The pair of transmission gears are respectively connected to the rotor output shaft and the transmission gear. As a preferred embodiment of this application, specifically, the outer side of the rotor output shaft is integrally provided with transmission gears adapted to the transmission gears. The wheel core shell and the disc sleeve are integrally rotatably connected to the housing assembly.

[0015] Furthermore, in the integrated wheelchair electric wheelchair described in this application, the housing assembly includes a first cover, which is installed on one end of the motor housing near the transmission disk. The first cover is provided with an axially extending first bearing seat, on which a first bearing is installed. The transmission disk is installed on the first bearing, and correspondingly, the transmission disk is provided with a first sleeve hole adapted to the outer diameter of the first bearing.

[0016] The housing assembly includes a second cover, which is mounted on the end of the motor housing away from the transmission disk. A second bearing seat is provided on the second cover, and a second bearing is mounted on the second bearing seat. The wheel core shell is mounted on the second bearing, and a second bushing corresponding to the outer diameter of the second bearing is provided on the wheel core shell. As a preferred embodiment of this application, based on the above structure, a rotational connection between the wheel body and the wheel core assembly is achieved.

[0017] Furthermore, in the integrated electric wheelchair wheelchair described in this application, the positioning part includes a bearing seat installed at the end of the housing assembly away from the transmission disk. The bearing seat includes a shaft body and a connecting cover disposed at the end of the shaft body. The connecting cover is connected to the end of the housing assembly.

[0018] A quick-release rod is inserted through the shaft body, and the quick-release rod extends axially through the housing assembly. A pressure cap is provided at the end of the quick-release rod away from the shaft seat, and a compression spring is provided axially between the pressure cap and the housing assembly. A limiting protrusion is provided at the end of the quick-release rod near the shaft seat. A first cavity adapted to the limiting protrusion and a second cavity adapted to the quick-release rod are provided in the shaft body. The first cavity is located outside the second cavity. At least one through hole is provided radially outward on the side wall of the first cavity near the second cavity. A limiting bead is provided in the through hole.

[0019] In the reset state, the compression spring pushes the pressure cap, causing the limiting protrusion to move to the inside of the limiting bead, with the outer side of the limiting bead protruding from the shaft. Pressing the pressure cap moves the limiting protrusion outwards from the axial position of the limiting bead, allowing the outer end of the limiting bead to retract into the outer diameter of the shaft. As a preferred embodiment of this application, based on the above structure, the integrated wheelchair electric wheel can be mounted on a connector with a through hole. The limiting bead and the connecting cover can achieve axial limiting, and pressing the pressure cap allows for quick axial release.

[0020] Furthermore, the integrated electric wheelchair wheelchair described in this application also includes a frame connector, the frame connector including a connecting plate, the connecting plate having an mounting tube, the shaft passing through the mounting tube, the mounting tube being disposed between the connecting cover and the limiting bead; the end of the mounting tube near the limiting bead extends to the inner side of the outer edge of the perforation to achieve limiting on the outer side of the limiting bead.

[0021] The mounting tube is provided with a limiting boss at one end near the limiting bead. Correspondingly, the connecting cover is provided with a limiting groove that is adapted to the limiting boss. The limiting boss is set in the limiting groove to achieve circumferential positioning.

[0022] The connecting cover includes a mounting plate, which is disposed on the outer side of the connecting cover along its axial direction, and the limiting groove is disposed on the mounting plate.

[0023] The connecting plate is provided with a set of arranged mounting holes, the mounting tube is installed in the mounting holes, the mounting tube is provided with a nut, and the connecting plate is disposed between the nut and the limiting boss;

[0024] It also includes a positioning sleeve, which is fitted onto the limiting boss and positioned between the connecting plate and the mounting plate. The positioning sleeve has a positioning platform that passes through the mounting hole on one side of the mounting tube. As a preferred embodiment of this application, it should be noted that the limiting boss is not circular in shape. Therefore, its corresponding limiting groove and the sleeve hole on the positioning sleeve can achieve circumferential positioning after mutual cooperation.

[0025] As can be seen from the above technical solution, the present invention has the following beneficial effects:

[0026] This invention provides an integrated electric wheelchair wheelchair that integrates the wheel body, drive motor, and electromagnetic brake into one unit. By sharing a single power switch between the drive motor and electromagnetic brake, braking is achieved upon power failure, and it allows for switching between electric and manual operation. As a standalone wheelchair accessory, it can be installed on existing manual wheelchairs via a positioning part, facilitating the conversion of existing manual wheelchairs into electric wheelchairs. It features convenient installation and wide applicability. Attached Figure Description

[0027] Figure 1 This is a three-dimensional cross-sectional view of an integrated electric wheelchair wheelchair according to an embodiment of this application;

[0028] Figure 2 for Figure 1 A magnified view of a portion of area A in the center circle;

[0029] Figure 3 for Figure 1 A magnified view of a portion of area B in the center circle;

[0030] Figure 4 This is a schematic diagram showing the locking tongue moving to the first position according to an embodiment of this application;

[0031] Figure 5 This is a schematic diagram showing the locking tongue moving to the second position according to an embodiment of this application;

[0032] Figure 6 This is a schematic diagram of the transmission connection between the rotor output shaft and the transmission disk according to an embodiment of this application;

[0033] Figure 7 This is an exploded view of a component on the side of the rotating cover of an integrated wheelchair electric wheelchair according to an embodiment of this application;

[0034] Figure 8 This is an exploded view of a component on one side of the frame connector of an integrated wheelchair electric wheelchair according to an embodiment of this application;

[0035] In the diagram: 1-Wheel body; 12-Wheel core shell; 121-Second set of holes; 13-Disc sleeve; 130-Positioning cavity; 131-Through cavity; 132-Flange; 133-First set of holes; 14-Lock tongue; 141-Lock head; 142-Pressure plate; 15-Armrail ring;

[0036] 2-Drive motor; 21-Rotor output shaft; 211-Brake block;

[0037] 3-Transmission disc; 31-Transmission gear; 32-Limiting cavity;

[0038] 4-Electromagnetic brake; 41-Electromagnetic brake cylinder; 42-First friction plate; 43-Second friction plate; 44-Third friction plate;

[0039] 5-Screw cap; 51-Pressure block; 510-Guide surface; 52-Elastic reset component; 53-Second protrusion; 54-Limiting hole; 55-First protrusion;

[0040] 6-Housing assembly; 61-Motor housing; 62-First cover; 621-First bearing housing; 63-First bearing; 64-Second cover; 641-Second bearing housing; 65-Second bearing;

[0041] 71-Gear shaft; 72-Transmission gear;

[0042] 8-Positioning part; 81-Shaft seat; 811-Shaft body; 812-Connecting cover; 8120-Limiting groove; 8121-Mounting plate; 82-Quick release rod; 821-Pressure cap; 822-Compression spring; 823-Limiting protrusion; 83-Limiting bead;

[0043] 9-Frame connector; 91-Connecting plate; 910-Mounting hole; 92-Mounting tube; 921-Limiting boss; 922-Nut; 93-Positioning sleeve; 931-Positioning platform. Detailed Implementation

[0044] Example

[0045] Combination Figure 1An integrated electric wheelchair wheelchair is shown, comprising a wheel body 1 and a wheel core assembly. The wheel body 1 is rotatably mounted on the wheel core assembly, which includes a drive motor 2 and a rotor output shaft 21. It also includes a transmission disc 3, with the rotor output shaft 21 and the transmission disc 3 being driveably connected. The wheel body 1 has a clutch portion, which includes a movable locking element and a clutch switch drively connected to the movable locking element. The clutch switch controls the connection and separation of the movable locking element from the transmission disc 3. The wheel body 1 also includes an electromagnetic brake 4, which brakes the rotor output shaft 21 when de-energized. A positioning part 8 for connection to a wheelchair is provided on one side of the wheel body 1.

[0046] Based on the above structure, the principle of the integrated electric wheelchair wheelchair is as follows: When the movable locking member is connected to the transmission disk 3, the wheel body 1 and the rotor output shaft 21 are connected in transmission, and the rotor output shaft 21 can drive the wheel body 1 to rotate. At this time, the integrated electric wheelchair wheelchair is in electric mode. When the drive motor 2 is turned off or the power supply is completely disconnected, the electromagnetic brake 4 can lock the rotor output shaft 21 to achieve braking in electric mode. If the clutch switch separates the movable locking member from the transmission disk 3, the rotation of the wheel body 1 and the rotor output shaft 21 is separated, and the rotor output shaft 21 cannot drive the wheel body 1 to rotate. The wheel body 1 needs to be manually turned to rotate, and this state is in manual mode. Based on the above device, the integrated electric wheelchair wheelchair of this application integrates the wheel body 1, drive motor 2, and electromagnetic brake 4 into one unit. By sharing a power switch between the drive motor 2 and the electromagnetic brake 4, braking can be achieved upon power failure, and switching between electric and manual modes can be realized. As an independent wheelchair accessory, it can be installed on existing wheelchairs through the positioning part 8, and has the characteristics of convenient installation and wide applicability. In this embodiment, the wheel body 1 is provided with a handle ring 15 for rotating the wheel body 1 in manual mode.

[0047] Combination Figure 2 , Figures 4 to 7 As shown, in this embodiment, the transmission disk 3 is generally annular, and the wheel body 1 has a positioning cavity 130 adapted to the outer diameter of the transmission disk 3. The transmission disk 3 is disposed in the positioning cavity 130, and the inner sidewall of the transmission disk 3 is provided with transmission teeth 31. The rotor output shaft 21 and the transmission teeth 31 are connected by gear transmission. In this embodiment, the transmission disk 3 is provided with a limiting cavity 32, and the movable locking element is a locking tongue 14 disposed outside the positioning cavity 130. The locking tongue 14 is provided with a locking head 141 adapted to the shape of the limiting cavity 32. Corresponding to the locking head 141, the positioning cavity 130 is provided with a through cavity 131. The clutch switch can control the locking tongue 14 to move to switch between a first position and a second position. When the locking tongue 14 switches to the first position (e.g. Figure 4The lock head 141 passes through the through cavity 131 and enters the limiting cavity 32. When the lock tongue 14 switches to the second position (e.g. Figure 5 The lock head 141 is located outside the limiting cavity 32. When the locking tongue 14 is in the first position, the transmission disk 3 is locked by the locking tongue 14, and the wheel 1 and transmission disk 3 are synchronously driven to rotate by the rotor output shaft 21. When the locking tongue 14 is in the second position, the transmission disk 3 and the locking tongue 14 are separated, and the rotation of the rotor output shaft 21 and the rotation of the wheel 1 do not interfere with each other. At this time, the rotor output shaft 21 cannot control the rotation of the wheel 1, and the wheel 1 is in manual mode. The limiting cavity 32 is arranged in a circumferential array on the outer wall of the transmission disk 3.

[0048] like Figure 2 , Figures 4 to 7 As shown, in this embodiment, the limiting cavity 32 is disposed on the outer side wall of the transmission disc 3, the wheel body 1 is provided with a disc sleeve 13, the positioning cavity 130 is disposed on the disc sleeve 13, the disc sleeve 13 is provided with a flange 132 on the radially outer side, the locking tongue 14 is rotatably disposed on the flange 132, the locking tongue 14 is provided with a pressure plate 142 extending away from the lock head 141, the clutch switch includes an elastic reset member 52 and a movable pressure block 51, the elastic reset member 52 and the pressure block 51 are respectively disposed on the inner side and the outer side of the pressure plate 142, the elastic reset member 52 is used to press the pressure plate 142 outward to make the locking tongue 14 in a first position, and the pressure block 51 is used to press the pressure plate 142 inward to make the locking tongue 14 in a second position. Specifically, the elastic reset member 52 is a compression spring, the rotation center of the locking tongue 14 is located between the lock head 141 and the pressure plate 142, the elastic reset member 52 and the pressure block 51 are respectively located on both sides of the pressure plate 142. In the reset state, the elastic reset member 52 radially supports the pressure plate 142 outward, so that the locking tongue 14 is in the first position. Optionally, the pressure block 51 can be installed on a screw, which is located on the outside of the disc sleeve 13. Rotating the screw causes the pressure block 51 to move axially, thereby realizing the pressing and separation of the pressure block 51 on the pressure plate 142.

[0049] In this embodiment, the clutch switch further includes a rotating cover 5 rotatably disposed on the outside of the wheel body 1. A pressure block 51 is disposed on the inside of the rotating cover 5. The inner side of the pressure block 51 has a guide surface 510 of a preset shape. The elastic reset member 52 presses the pressure plate 142 against the guide surface 510. Rotating the rotating cover 5 by a preset angle allows the guide surface 510 to push the pressure plate 142, causing the latch 14 to switch between a first position and a second position. The pressure block 51 is disposed on the inner wall of the rotating cover 5. The guide surface 510 disposed on the inner side of the pressure block 51 forms an inner cam. Specifically, the two ends of the guide surface 510 correspond to the low and high positions of the inner cam. Rotating the rotating cover 5 until the low position of the guide surface 510 is against the pressure plate 142 causes the latch 14 to rotate to the first position. Rotating the rotating cover 5 until the high position of the guide surface 510 is against the pressure plate 142 causes the latch 14 to rotate to the second position. Specifically, as shown... Figure 4 and 5 As shown, the inner side of the cap 5 has a first protrusion 55 corresponding to the low end of the guide surface 510, and also includes a second protrusion 53 disposed on the outer side of the high end of the guide surface 510 corresponding to the pressure block 51. When the low and high ends of the guide surface 510 are respectively in contact with the pressure plate 142, the elastic reset member 52 and the second protrusion 53 respectively contact the outer circumferential direction of the locking tongue 14 to prevent the cap 5 from rotating out of position. Specifically, the through cavity 131 is annular and is arranged in pairs axially spaced on the radial outer side of the disc sleeve 13. The cap 5 is rotatably disposed on the disc sleeve 13. The side wall of the cap 5 is provided with a limiting hole 54. The limiting hole 54 corresponds to the cavity between the pair of through cavities 131. The limiting hole 54 is used to insert an axial limiting member (not shown) between the pair of through cavities 131 to achieve axial positioning of the cap 5 and the disc sleeve 13.

[0050] like Figure 2 , Figure 6 , 7 As shown, in this embodiment, the wheel core assembly includes a housing assembly 6, the drive motor 2 is disposed within the housing cavity of the housing assembly 6, and the wheel body 1 has a wheel core shell 12 at its center. The housing assembly 6 is disposed within the housing cavity of the wheel core shell 12. In this embodiment, the disc sleeve 13 is installed on the axially outer side of the wheel core shell 12. The housing assembly 6 includes a motor housing 61, the stator of the drive motor 2 is installed within the motor housing 61, and a gear shaft 71 is rotatably disposed on the side of the motor housing 61 near the transmission disc 3. A pair of transmission gears 72 are provided on the gear shaft 71, and the pair of transmission gears 72 are respectively connected to the rotor output shaft 21 and the transmission gear 31. Specifically, the outer side of the rotor output shaft 21 is integrally provided with transmission teeth adapted to the transmission gears 72. The wheel core shell 12 and the disc sleeve 13 are rotatably connected to the housing assembly 6 as a whole.

[0051] like Figure 2As shown, in this embodiment, the housing assembly 6 includes a first cover 62, which is installed on the motor housing 61 near the transmission disk 3. The gear shaft 71 is rotatably mounted on the first cover 62. The first cover 62 has an axially extending first bearing seat 621, on which a first bearing 63 is mounted. The transmission disk 3 is mounted on the first bearing 63, and correspondingly, the transmission disk 3 has a first sleeve hole 133 adapted to the outer diameter of the first bearing 63. The housing assembly 6 also includes a second cover 64, which is installed on the motor housing 61 away from the transmission disk 3. The second cover 64 has a second bearing seat 641, on which a second bearing 65 is mounted. The wheel core housing 12 is mounted on the second bearing 65, and correspondingly, the wheel core housing 12 has a second sleeve hole 121 adapted to the outer diameter of the second bearing 65. Based on the above structure, the rotational connection between the wheel body 1 and the wheel core assembly is achieved.

[0052] like Figure 3 and Figure 8 As shown, in this embodiment, the positioning part 8 includes a bearing 81 installed at the end of the housing assembly 6 away from the transmission disk 3. The bearing 81 includes a shaft body 811 and a connecting cover 812 disposed at the end of the shaft body 811. The connecting cover 812 is connected to the end of the housing assembly 6. Specifically, the bearing 81 is installed on the first cover body 62.

[0053] A quick-release lever 82 is inserted inside the shaft body 811. The quick-release lever 82 extends axially through the housing assembly 6. A pressure cap 821 is provided at the end of the quick-release lever 82 away from the shaft seat 81. A compression spring 822 is axially provided between the pressure cap 821 and the housing assembly 6. A limiting protrusion 823 is provided at the end of the quick-release lever 82 near the shaft seat 81. The shaft body 811 has a first cavity adapted to the limiting protrusion 823 and a second cavity adapted to the quick-release lever 82. The first cavity is located within the second cavity. On the outer side of the cavity, at least one through hole is provided radially outward on the side wall of the first cavity near the end of the second cavity, and a limiting bead 83 is provided in the through hole; in the reset state, the compression spring 822 pushes the pressure cap 821, causing the limiting protrusion 823 to move to the inner side of the limiting bead 83, and the outer side of the limiting bead 83 protrudes out of the shaft body 811; pressing the pressure cap 821 until the limiting protrusion 823 moves outward out of the axial position of the limiting bead 83, the outer end of the limiting bead 83 can retract into the outer diameter of the shaft body 811. Specifically, the pressure cap 821 is located on the outer side of the screw cap 5, the compression spring 822 is located between the first cover body 62 and the pressure cap 821, and the compression spring 822 is sleeved on the quick release rod 82. Based on the above structure, the integrated wheelchair electric wheel can be installed on the connector with a through hole, the limiting bead 83 and the connecting cover 812 can achieve axial limiting, and pressing the pressure cap 821 can achieve axial quick release. The electromagnetic brake 4 is disposed between the bearing seat 81 and the first cover 62. A chamber for housing the electromagnetic brake 4 is provided between the bearing seat 81 and the first cover 62. The electromagnetic brake 4 includes an electromagnetic brake cylinder 41. A first friction plate 42 is provided on the movable iron core of the electromagnetic brake cylinder 41. A brake block 211 is provided on the end of the rotor output shaft 21 near the electromagnetic brake 4. A second friction plate 43 is sleeved on the brake block 211. The rotor output shaft 21 drives the second friction plate 43 to rotate through the brake block 211. A third friction plate 44 is provided on the side of the first cover 62 near the electromagnetic brake 4. The second friction plate 43 is disposed between the first friction plate 42 and the third friction plate 44. Its working principle is as follows: The electromagnetic brake cylinder 41 contains a spring (not shown) that abuts against the movable iron core of the electromagnetic brake cylinder 41. When the electromagnetic brake 4 is energized, the movable iron core of the electromagnetic brake cylinder 41 pulls the first friction plate 42 back towards the side opposite to the second friction plate 43, compressing the spring inside the electromagnetic brake cylinder 41. When the electromagnetic brake 4 is de-energized, the spring inside the electromagnetic brake cylinder 41 pushes the movable iron core of the electromagnetic brake cylinder 41 toward the second friction plate 43 until the first friction plate 42 presses against the second friction plate 43, and then presses the second friction plate 43 against the third friction plate 44, thereby causing the second friction plate 43 to brake circumferentially. After the second friction plate 43 is braked, the rotor output shaft 21 cannot rotate through the brake block 211, thus realizing the function of braking the rotor output shaft 21.

[0054] Specifically, the outer edge of the brake block 211 is hexagonal, and the corresponding second friction plate 43 is provided with an internal hexagonal hole adapted to the brake block 211.

[0055] like Figure 8 As shown, this embodiment also includes a frame connector 9, which includes a connecting plate 91. The connecting plate 91 has a mounting tube 92, and the shaft 811 passes through the mounting tube 92. The mounting tube 92 is positioned between the connecting cover 812 and the limiting bead 83. One end of the mounting tube 92 near the limiting bead 83 extends to the inner side of the perforation to limit the outer side of the limiting bead 83. One end of the mounting tube 92 near the limiting bead 83 has a limiting boss 921. Correspondingly, the connecting cover 812 has a limiting groove 8120 adapted to the limiting boss 921. The limiting boss 921 is positioned within the limiting groove 8120 to achieve circumferential positioning. The connecting cover 812 includes a mounting plate 8121, which is positioned axially outward of the connecting cover 812. The limiting groove 8120 is positioned on the mounting plate 8121. The connecting plate 91 has a set of arranged... The mounting plate 8121 includes a mounting hole 910, in which the mounting tube 92 is installed. A nut 922 is provided on the mounting tube 92, and a connecting plate 91 is positioned between the nut 922 and the limiting boss 921. A positioning sleeve 93 is also included, fitted onto the limiting boss 921 and positioned between the connecting plate 91 and the mounting plate 8121. A positioning platform 931 is provided on the positioning sleeve 93, which passes through the mounting hole 910 on one side of the mounting tube 92. Based on this structure, the shaft seat 81 is axially fitted with the positioning sleeve 93 via the mounting plate located outside the connecting cover 812, forming an axial limit on one side. The axial limit on the other side is achieved by the limiting bead 83 fitting against the outer end of the mounting tube 92. It should be noted that the limiting boss 921 is not circular; therefore, its corresponding limiting groove 8120 and the sleeve hole on the positioning sleeve 93, when engaged, can achieve circumferential positioning.

[0056] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of the invention and should not be construed as limiting the scope of protection of the invention in any way. Based on this explanation, those skilled in the art can conceive of other specific embodiments of the invention without creative effort, and these embodiments will all fall within the scope of protection of the present invention.

Claims

1. An integrated powered wheelchair wheel, characterized by: The device includes a wheel body and a wheel core assembly. The wheel body is rotatably mounted on the wheel core assembly. The wheel core assembly includes a drive motor, and the drive motor includes a rotor output shaft. The device also includes a transmission disk, and the rotor output shaft is connected to the transmission disk in a transmission manner. The wheel body is provided with a clutch part, which includes a movable locking member and a clutch switch that is throttledly connected to the movable locking member. The clutch switch is used to control the connection and separation of the movable locking member from the transmission disc. The wheel core assembly also includes an electromagnetic brake, which is capable of braking the rotor output shaft. One side of the wheel is provided with a positioning part for connecting to a wheelchair; The wheel core assembly includes a housing assembly, the drive motor is disposed within the housing cavity of the housing assembly, the wheel body has a wheel core shell at its center, and the housing assembly is disposed within the housing cavity of the wheel core shell; The positioning part includes a bearing seat installed at the end of the housing assembly away from the transmission disk. The bearing seat includes a shaft body and a connecting cover disposed at the end of the shaft body. The connecting cover is connected to the end of the housing assembly. A quick-release rod is inserted through the shaft body, and the quick-release rod extends axially through the housing assembly. A pressure cap is provided at the end of the quick-release rod away from the shaft seat, and a compression spring is provided axially between the pressure cap and the housing assembly. A limiting protrusion is provided at the end of the quick-release rod near the shaft seat. A first cavity adapted to the limiting protrusion and a second cavity adapted to the quick-release rod are provided in the shaft body. The first cavity is located outside the second cavity. At least one through hole is provided radially outward on the side wall of the first cavity near the second cavity. A limiting bead is provided in the through hole. In the reset state, the pressure spring pushes the pressure cap, causing the limiting protrusion to move to the inside of the limiting bead, and the outer side of the limiting bead protrudes out of the shaft; when the pressure cap is pressed, the limiting protrusion moves outward out of the axial position of the limiting bead, and the outer end of the limiting bead can retract into the outer diameter of the shaft. It also includes a frame connector, which includes a connecting plate, a mounting tube on the connecting plate, and the shaft passing through the mounting tube. The mounting tube is located between the connecting cover and the limiting bead. The mounting tube is provided with a limiting boss at the end away from the limiting bead. Correspondingly, the connecting cover is provided with a limiting groove that is adapted to the limiting boss. The limiting boss is set in the limiting groove to achieve circumferential positioning. The connecting cover includes a mounting plate, which is disposed on the outer side of the connecting cover along its axial direction, and the limiting groove is disposed on the mounting plate. The connecting plate is provided with a set of arranged mounting holes, the mounting tube is installed in the mounting holes, the mounting tube is provided with a nut, and the connecting plate is disposed between the nut and the limiting boss; It also includes a positioning sleeve, which is fitted onto the limiting protrusion and positioned between the connecting plate and the mounting plate. The positioning sleeve has a positioning platform that passes through the mounting hole on one side of the mounting tube.

2. The integrated electric wheelchair wheel of claim 1, wherein: The transmission disk is generally annular, and the wheel body is provided with a positioning cavity adapted to the outer diameter of the transmission disk. The transmission disk is set in the positioning cavity, and the inner side wall of the transmission disk is provided with transmission teeth. The rotor output shaft and the transmission teeth are connected by gear transmission.

3. An integrated electric wheelchair wheel according to claim 2, wherein: The transmission disc is provided with a limiting cavity, and the movable locking element is a locking tongue disposed outside the positioning cavity. The locking tongue is provided with a locking head that is adapted to the shape of the limiting cavity. Corresponding to the locking head, the positioning cavity is provided with a through cavity. The clutch switch can control the locking tongue to move to switch between a first position and a second position. When the locking tongue switches to the first position, the locking head passes through the through cavity and enters the limiting cavity. When the locking tongue switches to the second position, the locking head is outside the limiting cavity.

4. An integrated electric wheelchair wheel according to claim 3, wherein: The limiting cavity is disposed on the outer wall of the transmission disc, the wheel body is provided with a disc sleeve, the positioning cavity is disposed on the disc sleeve, the disc sleeve is provided with a flange on the radially outer side, the locking tongue is rotatably disposed on the flange, the locking tongue is provided with a pressure plate extending away from the lock head, the clutch switch includes an elastic reset member and a movable pressure block, the elastic reset member and the pressure block are respectively disposed on the inner and outer sides of the pressure plate, the elastic reset member is used to press the pressure plate outward to make the locking tongue in a first position, and the pressure block is used to press the pressure plate inward to make the locking tongue in a second position.

5. An integrated electric wheelchair wheel according to claim 4, wherein: The clutch switch also includes a rotating cover disposed on the outside of the wheel body, a pressure block disposed on the inside of the rotating cover, and a guide surface of a preset shape provided on the inside of the pressure block. The elastic reset member presses the pressure plate to fit against the guide surface. Rotating the rotating cover at a preset angle allows the guide surface to push the pressure plate, causing the locking tongue to switch between a first position and a second position.

6. The integrated electric wheelchair wheel of claim 4, wherein: The disc sleeve is installed on the axial outer side of the wheel core shell. The housing assembly includes a motor housing. The stator of the drive motor is installed inside the motor housing. A gear shaft is rotatably provided on the side of the motor housing near the transmission disc. A pair of transmission gears are provided on the gear shaft. The pair of transmission gears are respectively connected to the rotor output shaft and the transmission gear.

7. An integrated electric wheelchair wheel according to claim 6, wherein: The housing assembly includes a first cover, which is installed on one end of the motor housing near the transmission disk. The first cover is provided with an axially extending first bearing seat, on which a first bearing is installed. The transmission disk is installed on the first bearing, and correspondingly, the transmission disk is provided with a first sleeve hole adapted to the outer diameter of the first bearing. The housing assembly includes a second cover, which is installed on the end of the motor housing away from the transmission disk. The second cover is provided with a second bearing seat, and a second bearing is installed on the second bearing seat. The wheel core shell is installed on the second bearing, and the corresponding wheel core shell is provided with a second bushing that is adapted to the outer diameter of the second bearing.

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