A drive wheel set integrated with quick manual clutch

Abstract

The application belongs to the technical field of AGV driving wheel, and particularly relates to a driving wheel set integrated with quick manual clutch, which comprises a hollow wheel frame, a wheel piece, a driving shaft connecting piece, an outer clamping disc, a ring-shaped driving disc, a clutch nut and a spring. The application innovatively integrates the clamping friction clutch into the mechanical structure of the wheel set, greatly simplifies the mechanical structure of the integrated clutch function, and has a simple overall structure and a small size. The application can complete the operation of clutch separation and engagement by simply rotating the clutch nut, without other complex large external equipment and structure, and the switching operation is more convenient. In particular, the application can be applied to the scene of switching between the low-speed self-driving and high-speed passive traction of AGV, and is reliable and stable in use. The overall driving wheel set can adapt to the design requirements of different forms of wheel sets such as directional wheels, differential wheels and steering wheels, and provides a simple, small, reliable and highly adaptive solution for the application of the driving module of the electric transport vehicle such as AGV.

Description

Technical Field

[0001] This invention belongs to the field of AGV drive wheel technology, specifically a drive wheel assembly with integrated quick manual clutch. Background Technology

[0002] As the core handling equipment in intelligent manufacturing and logistics systems, AGVs are powered by batteries. In some special application scenarios (long-distance transfer or transfer due to failure), it is necessary to use a tractor to pull the AGV for high-speed long-distance transfer.

[0003] There are three main adjustment schemes for AGVs during traction. First, an external traction follower wheel is connected to the AGV, lifting the AGV's drive wheels off the ground for traction. This scheme requires additional jacks or other equipment. The traction follower wheel, when installed with the vehicle, occupies considerable space, and when not installed, it needs special storage. Furthermore, the operation is cumbersome and time-consuming. Second, an external clutch device is temporarily installed between the AGV's drive wheels and the drive reducer. This scheme is theoretically feasible, but due to the complex transition structure between the external clutch and the wheel assembly, and the significant increase in space occupied by the wheel set, it cannot meet the actual needs of practical projects. Third, the brake of the AGV's drive motor is released during traction. However, this only applies when the AGV is powered on; it cannot be implemented in case of power failure. Additionally, the motor shaft rotates during this traction method, making high-speed traction impossible.

[0004] Therefore, in order to adapt to scenarios where the wheel set needs to switch between low-speed self-drive and high-speed passive traction, a drive wheel set solution that is compact, easy to operate, completely separated, and whose motor does not follow is still needed to solve the technical pain points of cumbersome operation, high cost, and large size in the existing technology, so as to meet the needs of more application scenarios. Summary of the Invention

[0005] To address the aforementioned problems, the present invention aims to provide a drive wheel assembly with an integrated quick manual clutch.

[0006] The objective of this invention is achieved through the following technical solution: A drive wheel assembly with integrated quick manual clutch includes a hollow wheel frame, wheel pieces, drive shaft connector, outer clamping disc, annular drive disc, clutch nut, and spring; The wheel is rotatably mounted on the outer periphery of the hollow wheel frame. The hollow wheel frame is used to connect with an external frame and a corresponding reducer or drive motor. The inner side of the hollow wheel frame is provided with a drive shaft through-hole for the drive shaft driven by the corresponding reducer or drive motor to pass through. The drive shaft connector is divided into a splined sleeve and an inner clamping disc, which are connected together. The splined sleeve of the drive shaft connector has splines inside. The drive shaft, which passes through the drive shaft through-hole of the hollow wheel frame, also passes into the splined sleeve of the drive shaft connector and is connected to the splined sleeve via splines. The inner clamping disc of the drive shaft connector is connected to the outer periphery of the splined sleeve near the hollow wheel frame. The clutch nut is threadedly connected to the outer periphery of the splined sleeve away from the hollow wheel frame. The outer clamping disc is sleeved on the clutch nut. On the outer periphery of the spline sleeve between the nut and the inner clamping plate of the drive shaft connector, a plurality of springs are provided between the outer clamping plate and the inner clamping plate of the drive shaft connector. Each spring abuts against the outer clamping plate and the inner clamping plate of the drive shaft connector, forming a gap between the outer clamping plate and the inner clamping plate of the drive shaft connector. The outer peripheral edge of the annular drive disk is fixed to the side of the wheel near the outer clamping plate, and the inner peripheral edge of the annular drive disk extends into the gap between the outer clamping plate and the inner clamping plate of the drive shaft connector. When the clutch nut is rotated toward the side closer to the hollow wheel frame, the outer clamping plate and the inner clamping plate of the drive shaft connector can approach and clamp the inner peripheral edge of the annular drive disk, at which time all the springs are compressed; when the clutch nut is rotated away from the hollow wheel frame, the outer clamping plate and the inner clamping plate of the drive shaft connector can separate from the inner peripheral edge of the annular drive disk and remain separated under the elastic force of each spring.

[0007] A thrust ball bearing is also fitted on the outer periphery of the splined sleeve between the clutch nut and the outer clamping plate, and the thrust ball bearing abuts against the clutch nut and the outer clamping plate respectively.

[0008] The inner clamping plate of the drive shaft connector has spring receiving grooves A evenly distributed circumferentially on the side surface near the outer clamping plate. The outer clamping plate has spring receiving grooves B at positions corresponding to the spring receiving grooves A on the inner clamping plate of the drive shaft connector. Each spring simultaneously abuts against the corresponding spring receiving groove A and spring receiving groove B.

[0009] The inner clamping plate of the drive shaft connector has several guide pin mounting slots A on one side near the outer clamping plate. The outer clamping plate has guide pin mounting slots B at positions corresponding to each guide pin mounting slot A on the inner clamping plate of the drive shaft connector. Each guide pin is inserted into each corresponding guide pin mounting slot A and guide pin mounting slot B.

[0010] Friction pads for directly contacting and clamping the inner peripheral edge of the annular drive disk are respectively installed on the inner clamping plate of the drive shaft connector near the outer clamping plate and on the outer clamping plate near the inner clamping plate of the drive shaft connector by screws.

[0011] The drive wheel assembly with integrated quick manual clutch proposed in this invention also includes an axial limiting cover. The axial limiting cover is fixed to the end of the drive shaft away from the hollow wheel frame by screws. The outer edge contour of the axial limiting cover is larger than the outer periphery contour of the spline sleeve of the drive shaft connector.

[0012] The wheel is provided with a dust cover, which is located on the outside of the whole consisting of the drive shaft connector and the outer clamping plate, and allows the clutch nut to pass through.

[0013] The wheel is rotatably connected to the hollow wheel frame via an angular contact ball bearing.

[0014] A sealing ring support frame A is installed on the side of the wheel away from the outer clamping plate, and a sealing ring support frame B is installed on the end of the hollow wheel frame near the outer clamping plate. A rotating lip seal A is provided between the sealing ring support frame A and the hollow wheel frame, and a rotating lip seal B is provided between the sealing ring support frame B and the annular drive disc. The positions of the rotating lip seal A and the rotating lip seal B correspond to the positions of the angular contact ball bearing.

[0015] O-rings are respectively embedded at the contact surface between the wheel and the sealing ring support frame A and at the contact surface between the wheel and the annular drive disk.

[0016] The advantages and positive effects of this invention are as follows: 1. This invention innovatively integrates the clamping friction clutch into the mechanical structure of the wheelset, which greatly simplifies the mechanical structure of the integrated clutch function and can significantly reduce the axial dimension occupied by the clutch function, making the wheelset structure simple and compact.

[0017] 2. This invention allows for simple clutch engagement and disengagement operations by rotating the clutch nut, eliminating the need for other complex and large external equipment and structures. This makes switching operations more convenient and is particularly suitable for scenarios where AGVs switch between low-speed self-drive and high-speed passive traction modes, ensuring reliable and stable operation.

[0018] 3. The drive wheel assembly of the present invention can adapt to the design requirements of different types of wheel assemblies such as directional wheels, differential wheels, and steering wheels, providing a simple, compact, reliable, and highly adaptable solution for the application of drive modules in electric transport vehicles such as AGVs. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall external structure of the present invention; Figure 2 This is a schematic cross-sectional view of the overall structure of the present invention; Figure 3 for Figure 2 Enlarged view of point A; Figure 4 This is a schematic diagram of the external state when the present invention is installed on the corresponding AGV; Figure 5 This is a schematic diagram showing the partially cut-out state of the present invention when it is installed on the corresponding AGV.

[0020] In the diagram: 1 is the hollow wheel frame, 2 is the wheel piece, 3 is the drive shaft connector, 301 is the spline sleeve, 302 is the inner clamping plate, 4 is the outer clamping plate, 5 is the annular drive plate, 6 is the clutch nut, 7 is the spring, 8 is the thrust ball bearing, 9 is the guide pin, 10 is the friction plate, 11 is the axial limit cover, 12 is the dust cover, 13 is the angular contact ball bearing, 14 is the seal ring support frame A, 15 is the seal ring support frame B, 16 is the rotary lip seal A, 17 is the rotary lip seal B, and 18 is the O-ring seal. 001 is the drive motor, 002 is the reducer, and 003 is the drive shaft. Detailed Implementation

[0021] The following is in conjunction with the appendix Figures 1-5 The present invention will be described in further detail below.

[0022] A drive wheel assembly with integrated quick manual clutch, such as Figures 1-5 As shown, this embodiment includes a hollow wheel frame 1, a wheel 2, a drive shaft connector 3, an outer clamping disc 4, an annular drive disc 5, a clutch nut 6, and a spring 7.

[0023] The wheel 2 is rotatably mounted on the outer periphery of the hollow wheel frame 1. The hollow wheel frame 1 is used to connect to an external frame and a corresponding reducer 002 or drive motor 001. The inner side of the hollow wheel frame 1 has a drive shaft through-hole for the drive shaft 003 driven by the corresponding reducer 002 or drive motor 001 to pass through. In this embodiment, as shown... Figure 1 and Figure 2As shown, the hollow wheel frame 1 has an internal space for accommodating the reducer 002. The hollow wheel frame 1 is fixed to the housing of the reducer 002 by screws. The housing of the reducer 002 is also fixed to the housing of the drive motor 001. The output end of the drive motor 001 is connected to the input end of the reducer 002, and the output end of the reducer 002 is connected to the corresponding drive shaft 003. Depending on the usage requirements, the hollow wheel frame 1 can also be directly connected to the drive motor 001, with the drive motor 001 connecting to the corresponding drive shaft 003. Alternatively, the output end of the drive motor 001 or the output end of the reducer 002 can be used as the drive shaft 003. The specific structure of the hollow wheel frame 1 is as follows... Figure 2 , Figure 4 and Figure 5 As shown, it can be reasonably adjusted according to usage requirements and corresponding external racks, and the connection method with the external rack adopts existing technology.

[0024] The drive shaft connector 3 is divided into a splined sleeve portion 301 and an inner clamping disc portion 302 connected together. The splined sleeve portion 301 of the drive shaft connector 3 has splines inside. In this embodiment, the splined sleeve portion 301 and the inner clamping disc portion 302 are an integral structure, facilitating manufacturing. The drive shaft 003, which exits the hollow wheel frame 1 through the drive shaft through-hole, also passes into the interior of the splined sleeve portion 301 of the drive shaft connector 3 and is connected to the splined sleeve portion 301 via splines. The drive shaft 003 transmits driving torque to the drive shaft connector 3 through the splines. The inner clamping disc 302 of the drive shaft connector 3 is connected to the outer periphery of the spline sleeve 301 of the drive shaft connector 3 near the hollow wheel frame 1. The clutch nut 6 is threadedly connected to the outer periphery of the spline sleeve 301 of the drive shaft connector 3 away from the hollow wheel frame 1. The outer clamping disc 4 is sleeved on the outer periphery of the spline sleeve 301 between the clutch nut 6 and the inner clamping disc 302 of the drive shaft connector 3, and can slide along the axial direction of the drive shaft connector 3. The outer clamping disc 4 and the drive shaft connector 3 are connected to the inner clamping disc 302 of the drive shaft connector 3. A plurality of springs 7 are provided between the inner clamping plate portion 302 of the drive shaft connector 3. Each spring 7 abuts against the outer clamping plate 4 and the inner clamping plate portion 302 of the drive shaft connector 3, thereby forming a gap between the outer clamping plate 4 and the inner clamping plate portion 302 of the drive shaft connector 3. The outer peripheral edge of the annular drive disk 5 is fixed to the side of the wheel 2 near the outer clamping plate 4 by screws. The inner peripheral edge of the annular drive disk 5 extends into the gap between the outer clamping plate 4 and the inner clamping plate portion 302 of the drive shaft connector 3.

[0025] When the AGV needs to be used normally, the clutch nut 6 is rotated towards the side closer to the hollow wheel frame 1. The outer clamping plate 4 and the inner clamping plate portion 302 of the drive shaft connector 3 can approach and clamp the inner peripheral edge of the annular drive disk 5, at which time all springs 7 are compressed. The annular drive disk 5, clamped by the outer clamping plate 4 and the inner clamping plate portion 302 of the drive shaft connector 3, can receive the driving torque transmitted by the drive shaft 003 through the drive shaft connector 3, thereby driving the annular drive disk 5 and the wheel 2 to rotate together, and can be used for the low-speed self-driving condition of the AGV itself.

[0026] When the AGV needs to be moved over long distances or due to a breakdown, and requires towing by an external tractor, the clutch nut 6 can be rotated away from the hollow wheel frame 1. The inner clamping plate 302 of the outer clamping plate 4 and the drive shaft connector 3 can separate from the inner circumferential edge of the annular drive disc 5 and remain separated under the elastic force of the springs 7. At this time, the annular drive disc 5 and the wheel 2 can rotate freely relative to the drive shaft 003 and the drive shaft connector 3. The output end of the corresponding reducer 002 or the output end of the drive motor 001 will not be driven to rotate, which can adapt to the working conditions of high-speed passive traction. Through the above structure, it can be seen that in normal use, the clutch disengagement and engagement can be completed simply by rotating the clutch nut 6, without the need for other complex and large external equipment and structures, and the wheel set structure is simple and compact.

[0027] Specifically, such as Figure 2 and Figure 3 As shown, in this embodiment, a thrust ball bearing 8 is also fitted on the outer periphery of the spline sleeve 301 between the clutch nut 6 and the outer clamping plate 4. The thrust ball bearing 8 abuts against the clutch nut 6 and the outer clamping plate 4 respectively. The thrust ball bearing 8 is used to isolate the clutch nut 6 and the outer clamping plate 4, and can change the internal thrust generated when the clutch nut 6 rotates from sliding friction to rolling friction, greatly reducing the loss of operating force.

[0028] Specifically, such as Figure 3 and Figure 5 As shown, in this embodiment, spring receiving grooves A are evenly distributed circumferentially on the side of the inner clamping plate portion 302 of the drive shaft connector 3 near the outer clamping plate 4. Spring receiving grooves B are respectively formed on the outer clamping plate 4 at positions corresponding to the spring receiving grooves A on the inner clamping plate portion 302 of the drive shaft connector 3. Each spring 7 simultaneously abuts against its corresponding spring receiving groove A and spring receiving groove B, facilitating the positioning and installation of the spring 7. The evenly distributed springs 7 serve two purposes: firstly, to push the outer clamping plate 4 away from the inner clamping plate portion 302; and secondly, to maintain uniform gaps between the outer clamping plate 4 and the annular drive plate 5, and between the annular drive plate 5 and the inner clamping plate portion 302, ensuring stable operation.

[0029] In this embodiment, a plurality of guide pin mounting grooves A are provided on the side of the inner clamping plate portion 302 of the drive shaft connector 3 near the outer clamping plate 4. Guide pin mounting grooves B are respectively provided on the outer clamping plate 4 at positions corresponding to each guide pin mounting groove A on the inner clamping plate portion 302 of the drive shaft connector 3. A matching guide pin 9 is inserted into each corresponding guide pin mounting groove A and guide pin mounting groove B. The guide pins 9 facilitate the installation and positioning between the outer clamping plate 4 and the inner clamping plate portion 302 of the drive shaft connector 3, preventing rotation of the outer clamping plate 4 relative to the inner clamping plate portion 302 of the drive shaft connector 3, thus ensuring stable operation.

[0030] In this embodiment, as Figure 3 As shown, friction plates 10 for directly contacting and clamping the inner peripheral edge of the annular drive disk 5 are respectively installed on the side of the inner clamping plate portion 302 of the drive shaft connector 3 near the outer clamping plate 4 and on the side of the outer clamping plate 4 near the inner clamping plate portion 302 of the drive shaft connector 3 by screws. The friction plates 10 increase the frictional force between the friction plates and the annular drive disk 5, thereby reducing the normal pressure under the required frictional torque, and thus reducing the operating torque required for the clutch nut 6. The clutch switching action operates in a static state, ensuring the friction plates 10 are secure and improving reliability and lifespan.

[0031] Specifically, the integrated quick manual clutch drive wheel assembly in this embodiment also includes an axial limiting cover 11. The axial limiting cover 11 is fixed to the end of the drive shaft 003 away from the hollow wheel frame 1 by screws. The outer edge contour of the axial limiting cover 11 is larger than the outer periphery contour of the spline sleeve portion 301 of the drive shaft connector 3. The axial limiting cover 11 is used to axially limit the clutch nut 6 to prevent the clutch nut 6 from accidentally detaching from the spline sleeve portion 301 of the drive shaft connector 3. The axial limiting cover 11 can also serve as a stop mark indicating the separation state of the outer clamping plate 4 and the inner clamping plate portion 302 of the drive shaft connector 3 from the annular drive plate 5. In this embodiment, a dust cover 12 is also provided on the wheel 2 by screws. The dust cover 12 is provided on the outside of the whole composed of the drive shaft connector 3 and the outer clamping plate 4, and allows the clutch nut 6 to pass through, which can play a role in dust protection for its internal structure and also make the drive wheel assembly more aesthetically pleasing.

[0032] Specifically, such as Figure 3As shown, in this embodiment, the wheel 2 is rotatably connected to the hollow wheel frame 1 via an angular contact ball bearing 13, which can meet the load-bearing requirements of the wheel 2 in all directions during movement. The angular contact ball bearing 13 can be installed in pairs or separately depending on the wheel size configuration. The structure of the wheel 2 in this embodiment also adopts existing technology, and can be a structure with a built-in hub and rubber linings of different hardnesses on the outer circumference that can be selected according to different loads and operating environments. The size and shape can be freely customized according to different needs.

[0033] In this embodiment, as Figure 2 and Figure 3 As shown, a sealing ring support frame A 14 is installed on the side of the wheel 2 away from the outer clamping plate 4, and a sealing ring support frame B 15 is installed on the end of the hollow wheel frame 1 near the outer clamping plate 4. A rotating lip seal A 16 is provided between the sealing ring support frame A 14 and the hollow wheel frame 1, and a rotating lip seal B 17 is provided between the sealing ring support frame B 15 and the annular drive disc 5. The positions of the rotating lip seals A 16 and B 17 correspond to the positions of the angular contact ball bearing 13. The rotating lip seals A 16 and B 17 provide a rotational seal at the location of the angular contact ball bearing 13 during rotational motion and maintain the seal of the grease in the internal rotating components such as the bearing. O-rings 18 are respectively embedded at the contact surface between the wheel 2 and the sealing ring support frame A 14 and at the contact surface between the wheel 2 and the annular drive disk 5, for respectively achieving mechanical static sealing at the corresponding locations.

Claims

1. A drive wheel assembly with integrated quick manual clutch, characterized in that: Includes hollow wheel frame (1), wheel piece (2), drive shaft connector (3), outer clamping plate (4), ring drive plate (5), clutch nut (6), and spring (7); The wheel (2) is rotatably disposed on the outer periphery of the hollow wheel frame (1). The hollow wheel frame (1) is used to connect with the external frame and the corresponding reducer (002) or drive motor (001). The inner side of the hollow wheel frame (1) is provided with a drive shaft through-hole for the drive shaft (003) driven by the corresponding reducer (002) or drive motor (001) to pass through. The drive shaft connector (3) is divided into a spline sleeve (301) and an inner clamping disc (302) connected together. The spline sleeve (301) of the drive shaft connector (3) is provided with splines inside. The drive shaft (003) that passes through the drive shaft through-hole of the hollow wheel frame (1) also passes into the spline sleeve (301) of the drive shaft connector (3) and is connected to the spline sleeve (301) by splines. The inner clamping disc (302) of the drive shaft connector (3) is connected to the outer periphery of the spline sleeve (301) of the drive shaft connector (3) near the hollow wheel frame (1). The clutch nut (6) is threaded to the outer periphery of the spline sleeve (301) of the drive shaft connector (3) away from the hollow wheel frame (1). The outer clamping disc (4) is sleeved on the outer periphery of the drive shaft connector (3). On the outer periphery of the spline sleeve (301) between the nut (6) and the inner clamping plate (302) of the drive shaft connector (3), a plurality of springs (7) are provided between the outer clamping plate (4) and the inner clamping plate (302) of the drive shaft connector (3). Each spring (7) abuts against the outer clamping plate (4) and the inner clamping plate (302) of the drive shaft connector (3) and forms a gap between the outer clamping plate (4) and the inner clamping plate (302) of the drive shaft connector (3). The outer periphery of the annular drive disk (5) is fixed to the side of the wheel (2) near the outer clamping plate (4). The inner periphery of the annular drive disk (5) extends into the gap between the outer clamping plate (4) and the inner clamping plate (302) of the drive shaft connector (3). When the clutch nut (6) is rotated toward the side closer to the hollow wheel frame (1), the outer clamping plate (4) and the inner clamping plate portion (302) of the drive shaft connector (3) can approach and clamp the inner peripheral edge of the annular drive disk (5), at which time each of the springs (7) is compressed; when the clutch nut (6) is rotated toward the side away from the hollow wheel frame (1), the outer clamping plate (4) and the inner clamping plate portion (302) of the drive shaft connector (3) can separate from the inner peripheral edge of the annular drive disk (5) and remain separated under the elastic force of each of the springs (7); The inner clamping plate portion (302) of the drive shaft connector (3) has a plurality of guide pin mounting grooves A on the side near the outer clamping plate (4). The outer clamping plate (4) has guide pin mounting grooves B at positions corresponding to each guide pin mounting groove A on the inner clamping plate portion (302) of the drive shaft connector (3). A matching guide pin (9) is inserted into each corresponding guide pin mounting groove A and guide pin mounting groove B.

2. The drive wheel assembly with integrated quick manual clutch according to claim 1, characterized in that: A thrust ball bearing (8) is also fitted on the outer periphery of the spline sleeve (301) between the clutch nut (6) and the outer clamping plate (4), and the thrust ball bearing (8) abuts against the clutch nut (6) and the outer clamping plate (4) respectively.

3. The drive wheel assembly with integrated quick manual clutch according to claim 1, characterized in that: The inner clamping plate portion (302) of the drive shaft connector (3) is provided with spring receiving grooves A evenly distributed along the circumference on the side surface near the outer clamping plate (4). The outer clamping plate (4) is provided with spring receiving grooves B at positions corresponding to the spring receiving grooves A on the inner clamping plate portion (302) of the drive shaft connector (3). Each spring (7) simultaneously abuts against the corresponding spring receiving groove A and spring receiving groove B.

4. The drive wheel assembly with integrated quick manual clutch according to claim 1, characterized in that: Friction pads (10) for directly contacting and clamping the inner peripheral edge of the annular drive disk (5) are respectively installed on the side of the inner clamping plate portion (302) of the drive shaft connector (3) near the outer clamping plate (4) and on the side of the outer clamping plate (4) near the inner clamping plate portion (302) of the drive shaft connector (3) by screws.

5. A drive wheel assembly with integrated quick manual clutch according to claim 1, characterized in that: It also includes an axial limiting cover (11), which is fixed to the end of the drive shaft (003) away from the hollow wheel frame (1) by screws. The outer edge contour of the axial limiting cover (11) is larger than the outer periphery contour of the spline sleeve (301) of the drive shaft connector (3).

6. A drive wheel assembly with integrated quick manual clutch according to claim 1, characterized in that: The wheel (2) is provided with a dust cover (12), which is located on the outside of the whole consisting of the drive shaft connector (3) and the outer clamping plate (4) and allows the clutch nut (6) to pass through.

7. A drive wheel assembly with integrated quick manual clutch according to claim 1, characterized in that: The wheel (2) is rotatably connected to the hollow wheel frame (1) via an angular contact ball bearing (13).

8. A drive wheel assembly with integrated quick manual clutch according to claim 7, characterized in that: A sealing ring support frame A (14) is installed on the side of the wheel (2) away from the outer clamping plate (4). A sealing ring support frame B (15) is installed on the end of the hollow wheel frame (1) near the outer clamping plate (4). A rotating lip seal A (16) is provided between the sealing ring support frame A (14) and the hollow wheel frame (1). A rotating lip seal B (17) is provided between the sealing ring support frame B (15) and the annular drive disc (5). The positions of the rotating lip seal A (16) and the rotating lip seal B (17) correspond to the positions of the angular contact ball bearing (13).

9. A drive wheel assembly with integrated quick manual clutch according to claim 8, characterized in that: O-rings (18) are respectively embedded at the contact surface between the wheel (2) and the sealing ring support frame A (14) and at the contact surface between the wheel (2) and the annular drive disk (5).

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