Clutch structure of rotating wheel

Abstract

The utility model relates to a clutch structure of a rotating wheel. The clutch structure comprises a fixed shaft assembly, a driving shaft assembly and the rotating wheel. The fixed shaft assembly comprises a clutch telescopic device, a first supporting frame and a first transmission flange, the clutch telescopic device is arranged in the first supporting frame and can stretch out of or retract into the first supporting frame, the first transmission flange is fixed to the telescopic end of the clutch telescopic device, and a pin is fixed to the first transmission flange; the driving shaft assembly comprises a second transmission flange, a second supporting frame and a motor transmission shaft, the motor transmission shaft is installed in the second supporting frame and can rotate relative to the second supporting frame, the second transmission flange is fixedly arranged at one end of the motor transmission shaft, a pin hole matched with the pin is formed in the second transmission flange, and when the pin is inserted into the pin hole, the motor is driven to rotate. The motor transmission shaft drives the fixed shaft assembly to rotate; the rotating wheel is fixedly connected with the first supporting frame and the second supporting frame. The pin and the pin hole are located in the rotating wheel. The fixed shaft assembly and the driving shaft assembly are both arranged in the rotating wheel, so that the clutch structure is simpler, and the rotating wheel is convenient to install.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of mechanical transmission, in particular to a clutch structure of a rotating wheel. BACKGROUND

[0002] As a special omni-directional wheel, the Mecanum wheel is widely used in various devices requiring omni-directional movement. However, in the traditional mechanical structure, the realization of the clutch function usually depends on a complex physical structure.

[0003] In the Mecanum wheel, how to realize the clutch function to simply and quickly separate the transmission components when the motor is not needed has become a problem to be solved. The traditional clutch structure is usually complex and costly, which not only increases the manufacturing cost of the device, but also increases the difficulty of maintenance and repair.

[0004] Therefore, how to design a simple and effective clutch mechanism to simplify the mechanical structure of the Mecanum wheel and reduce the manufacturing cost and maintenance difficulty has become a technical problem to be faced by the technical personnel in the field. CONTENT OF THE INVENTION

[0005] In order to simplify the clutch structure of the rotating wheel, the application provides a clutch structure of a rotating wheel.

[0006] The application provides a clutch structure of a rotating wheel, which adopts the following technical scheme.

[0007] The clutch structure of the rotating wheel comprises:

[0008] A fixed shaft assembly comprises a clutch telescopic device, a first support frame and a first transmission flange. The clutch telescopic device is arranged in the first support frame and can be extended out of or retracted into the first support frame. The first transmission flange is fixed to the telescopic end of the clutch telescopic device. A pin is fixed to the first transmission flange.

[0009] A drive shaft assembly comprises a second transmission flange, a second support frame and a motor transmission shaft. The motor transmission shaft is installed in the second support frame and can rotate relative to the second support frame. The second transmission flange is fixed to one end of the motor transmission shaft. The second transmission flange is provided with a pin hole matched with the pin. When the pin is inserted into the pin hole, the motor transmission shaft drives the fixed shaft assembly to rotate.

[0010] A rotating wheel is fixedly connected to the first support frame and the second support frame. The pin and the hole are located inside the rotating wheel.

[0011] By adopting the technical scheme, the clutching and telescoping device can move in and out relative to the fixed shaft assembly. When the clutching and telescoping device is extended, the pin of the first transmission flange and the pin hole of the second transmission flange form a clamping connection, so that the motor transmission shaft can drive the clutching and telescoping device to rotate, thereby driving the first support frame, the rotating wheel and the second support frame to rotate as a whole. When the clutching and telescoping device is retracted, the pin and the pin hole are separated, and the connection between the motor transmission shaft and the clutching and telescoping device is released, so that the rotating wheel is no longer driven by the motor transmission shaft, achieving the purpose of clutching. The fixed shaft assembly and the driving shaft assembly can realize the clutching function in the interior of the rotating wheel, avoiding the need to set an additional clutching structure outside the rotating wheel, reducing the volume required by the rotating wheel and the clutching structure, facilitating installation, and improving the applicability of the rotating wheel.

[0012] Optionally, the clutching and telescoping device comprises a clutching driving shaft and a spline shaft, the clutching driving shaft is fixedly installed in the first support frame, and the spline shaft is connected to the clutching driving shaft, and the clutching driving shaft can drive the spline shaft to extend out of or retract into the first support frame.

[0013] By adopting the technical scheme, the clutching driving shaft controls the spline shaft to extend out of or retract into the first support frame, thereby driving the first transmission flange fixed to the end of the spline shaft to move, and achieving the clamping and separation of the pin on the first transmission flange and the pin hole on the second transmission flange.

[0014] Optionally, the outer wall of the spline shaft has a protrusion, and the inner wall of the first support frame has a groove matched with the outer wall of the spline shaft.

[0015] By adopting the technical scheme, the protrusion of the spline shaft can slide along the groove in the first support frame, realizing the axial movement of the spline shaft in the first support frame while preventing the spline shaft from rotating relative to the first support frame, thereby ensuring the stability of transmission during clutching.

[0016] Optionally, the outer side of the first support frame is provided with a cover plate, and the clutching driving shaft penetrates through the cover plate and is fixed in the first support frame.

[0017] By adopting the technical scheme, one end of the clutching driving shaft is clamped on the cover plate, so that the clutching driving shaft is fixed relative to the first support frame, thereby being able to drive the spline shaft to move in and out relative to the first support frame, and the clutching driving shaft stably controls the spline shaft.

[0018] Optionally, the clutching driving shaft comprises a peg head and a ring-shaped flange, the peg head is arranged on the outer side of the cover plate, and the ring-shaped flange is arranged on the inner side of the cover plate.

[0019] By adopting the technical scheme, the peg head and the ring-shaped flange sandwich the cover plate, so that the position of the clutching driving shaft is fixed relative to the cover plate, the cover plate is fixed on the first support frame, and the clutching driving shaft is prevented from being separated from the first support frame during rotation.

[0020] Optionally, the clutching and telescoping device further comprises a spring, the spring is sleeved on the periphery of the clutching drive shaft, and two ends thereof are respectively abutted against the cover plate and the spline shaft.

[0021] By adopting the above technical scheme, when the spline shaft is retracted, the spline shaft moves towards the cover plate, the space between the cover plate and the spline shaft is compressed, so that the spring is compressed.

[0022] Optionally, the drive shaft assembly comprises a helical gear for connecting with the motor, and the helical gear is connected to the motor drive shaft at an end away from the second transmission flange.

[0023] By adopting the above technical scheme, the helical gear connects the external motor and the motor drive shaft, increases the connection surface of the motor drive shaft and the external motor, and enables the rotating force generated by the external motor to be more stably transmitted to the motor drive shaft.

[0024] Optionally, a connecting bearing is arranged between the motor drive shaft and the second support frame.

[0025] By adopting the above technical scheme, since the motor drive shaft needs to rotate relative to the second support frame, the connecting bearing is arranged to enable the rotation of the motor drive shaft to not affect the second support frame when the clutching structure is separated, thereby guaranteeing the clutching effect.

[0026] Optionally, the clutching and telescoping device further comprises a connecting frame connecting the first support frame and the second support frame.

[0027] By adopting the above technical scheme, the connecting frame can fix the rotating wheel on an external object that needs to be moved, so that the rotating wheel is more easily installed.

[0028] Optionally, a first bearing is arranged between the connecting frame and the first support frame, and a second bearing is arranged between the connecting frame and the second support frame.

[0029] By adopting the above technical scheme, the connecting frame needs to be fixed on an external object, and the rotating wheel needs to rotate relative to the connecting frame, so that the first bearing and the second bearing are arranged to enable the first support frame, the second support frame, and the rotating wheel connected thereto to rotate relative to the connecting frame.

[0030] In summary, the present application has at least the following beneficial effects:

[0031] 1. The clutch telescopic device can move telescopically relative to the fixed shaft assembly, so as to connect or separate the pin and the pin hole, realize the clutch effect, simplify the complexity of the traditional clutch structure, and reduce the manufacturing cost and maintenance difficulty; and the fixed shaft assembly and the driving shaft assembly can realize the clutch effect in the interior of the runner, avoid setting an additional clutch structure outside the runner, reduce the volume required by the runner and the clutch structure, facilitate setting and installation, and improve the applicability of the runner.

[0032] 2. The protrusion of the spline shaft can slide along the groove in the first support frame, realize the axial movement of the spline shaft in the first support frame, and avoid the rotation of the spline shaft relative to the first support frame, so as to more stably transmit the rotation of the motor driving shaft to the first support frame and guarantee the transmission stability during the clutch connection. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 is a schematic diagram of the overall structure of the embodiment of the present application;

[0034] Figure 2 is a schematic diagram of the exploded structure of the embodiment of the present application;

[0035] Figure 3 is a schematic diagram of the cross-sectional structure of the embodiment of the present application;

[0036] Figure 4 is a schematic diagram of the exploded structure of the fixed shaft assembly of the embodiment of the present application;

[0037] Figure 5 is a schematic diagram of the exploded structure of the driving shaft assembly of the embodiment of the present application.

[0038] BRIEF DESCRIPTION OF DRAWINGS 1. The fixed shaft assembly; 11, the clutch telescopic device; 111, the clutch driving shaft; 112, the spline shaft; 113, the spring; 114, the protrusion; 115, the stud; 116, the annular flange; 12, the first support frame; 121, the groove; 13, the first transmission flange; 14, the pin; 15, the cover plate; 2, the driving shaft assembly; 21, the motor transmission shaft; 22, the second support frame; 23, the second transmission flange; 24, the pin hole; 25, the helical gear; 26, the connecting bearing; 3, the runner; 4, the connecting frame; 41, the first bearing; 42, the second bearing. DETAILED DESCRIPTION

[0039] The present application will be further described in detail below with reference to the accompanying drawings.

[0040] REFERENCE Figure 1 and Figure 3The embodiment of the application discloses a clutch structure of a rotating wheel, which comprises a fixed shaft assembly 1, a driving shaft assembly 2, a rotating wheel 3 and a connecting frame 4. The fixed shaft assembly 1 and the driving shaft assembly 2 are installed in the rotating shaft of the rotating wheel 3, the fixed shaft assembly 1 can be connected with or separated from the driving shaft assembly 2, so that the clutching effect is realized in the rotating wheel 3, the additional clutch structure is avoided to be arranged outside the rotating wheel 3, and the volume required by the rotating wheel and the clutch structure is reduced.

[0041] With reference to Figure 2 , Figure 3 and Figure 4 , the fixed shaft assembly 1 comprises a clutching telescopic device 11, a first supporting frame 12, a first transmission flange 13, a pin 14 and a cover plate 15. The clutching telescopic device 11 is arranged in the first supporting frame 12, the clutching telescopic device 11 comprises a clutching driving shaft 111, a spline shaft 112 and a spring 113. The cover plate 15 is arranged outside the first supporting frame 12, the clutching driving shaft 111 passes through the cover plate 15 and is fixed on the first supporting frame 12 through the cover plate 15. The clutching driving shaft 111 is connected with the spline shaft 112, the clutching driving shaft 111 has a telescopic rod capable of telescopic movement, the spline shaft 112 is connected on the telescopic rod, so that the spline shaft 112 can be telescopically moved in the first supporting frame 12 under the driving of the clutching driving shaft 111. An axially extending groove 121 is arranged on the inner wall of the first supporting frame 12, and an axially extending protrusion 114 is arranged outside the spline shaft 112, the protrusion 114 can slide in the groove 121 and form a clamping connection in the rotating direction, so that the first supporting frame 12 can axially slide relative to the spline shaft 112 while avoiding relative rotation. The spring 113 is arranged between the cover plate 15 and the spline shaft 112, the clutching driving shaft 111 passes through the spring 113, when the clutching driving shaft 111 controls the spline shaft 112 to retract into the first supporting frame 12, the spline shaft 112 moves towards the cover plate 15, and the spring 113 between the two is compressed, when the spline shaft 112 retracts, the spline shaft 112 can be quickly retracted under the pushing of the spring 113, so that the clutching structure is more sensitive. The first transmission flange 13 is fixed on one end of the spline shaft 112 relative to the clutching driving shaft 111, four pins 14 are fixed on the first transmission flange 13, which are used for connecting the driving shaft assembly 2 when the spline shaft 112 retracts, so that the driving shaft assembly 2 can drive the fixed shaft assembly 1 to rotate.

[0042] With reference to Figure 2 , Figure 3 and Figure 5, the driving shaft assembly 2 comprises a motor transmission shaft 21, a second support frame 22, a second transmission flange 23, pin holes 24, a helical gear 25 and connecting bearings 26. The motor transmission shaft 21 passes through the interior of the second support frame 22, and two connecting bearings 26 are arranged between the two, so that the motor transmission shaft 21 can rotate relative to the second support frame 22 while supporting the second support frame 22. The outer side of the motor transmission shaft 21 is connected with the helical gear 25, which is used to connect the motor transmission shaft 21 with the external driving motor. The other end of the motor transmission shaft 21 is connected with the second transmission flange 23, and the second transmission flange 23 is provided with four pin holes 24 matched with the four pins 14. When the spline shaft 112 is extended, the pins 14 are inserted into the pin holes 24, so that the motor transmission shaft 21 and the clutch telescopic device 11 are connected, and the rotation of the external driving motor is transmitted to the fixed shaft assembly 1.

[0043] With reference to Figure 2 and Figure 3 , the rotating wheel 3 is fixedly connected with the first support frame 12 and the second support frame 22. When the pins 14 and the pin holes 24 are separated, the fixed shaft assembly 1, the second support frame 22 and the rotating wheel 3 are connected as a whole, and the motor transmission shaft 21 can rotate relative to the second support frame 22 under the support of the connecting bearings 26, so that the rotation of the motor transmission shaft 21 does not affect the remaining parts. When the pins 14 and the pin holes 24 are connected, the motor transmission shaft 21 is connected with the fixed shaft assembly 1, so that the motor transmission shaft 21 and the remaining parts are connected, thereby driving the rotating wheel 3 to rotate and achieving the purpose of clutching.

[0044] With reference to Figure 1 and Figure 2 , the connecting frame 4 is connected with the first support frame 12 and the second support frame 22 respectively, and the first bearing 41 is arranged between the connecting frame 4 and the first support frame 12, and the second bearing 42 is arranged between the connecting frame 4 and the second support frame 22, so that the connecting frame 4 can rotate relative to the fixed shaft assembly 1, the driving shaft assembly 2 and the rotating wheel 3. The connecting frame 4 is used to connect the rotating wheel 3 with external objects, and facilitates the installation of the rotating wheel 3.

[0045] The implementation principle of the embodiment is that when the rotating wheel 3 needs to be driven, the clutch driving shaft 111 drives the spline shaft 112 to extend, so that the pins 14 and the pin holes 24 are connected, and the motor transmission shaft 21 is driven to rotate the fixed shaft assembly 1 under the driving of the external motor through the connection of the pins 14 and the pin holes 24, thereby driving the rotating wheel 3 to rotate. When the driving needs to be disconnected, the clutch driving shaft 111 is retracted into the spline shaft 112, so that the pins 14 and the pin holes 24 are separated, and the motor transmission shaft 21 cannot drive the rotating wheel 3 to rotate any more, so as to achieve the effect of clutching.

[0046] The above are all preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: all equivalent changes made according to the structure, shape, principle of the present application should be covered in the protection scope of the present application.

Claims

1. A clutching structure of a runner, characterized by, The utility model relates to a kind of drive shaft assemblies and fixed shaft assemblies, including: Fixed shaft assembly (1), including clutch telescopic device (11), first support frame (12) and first transmission flange (13), the clutch telescopic device (11) is located in the first support frame (12), can be extended or retracted into the first support frame (12), the first transmission flange (13) is fixed in the telescopic end of the clutch telescopic device (11), the first transmission flange (13) is fixed with pin (14); Drive shaft assembly (2), including motor drive shaft (21), second support frame (22) and second transmission flange (23), the motor drive shaft (21) is installed in the second support frame (22), can rotate relative to the second support frame (22), the second transmission flange (23) is fixed in one end of the motor drive shaft (21), the second transmission flange (23) is equipped with the pin hole (24) matched with the pin (14), when the pin (14) is inserted into the pin hole, the motor drive shaft (21) drives the fixed shaft assembly (1) to rotate; Runner (3) is connected the first support frame (12) with the second support frame (22), and the pin (14) and the pin hole (24) are located inside the runner (3).

2. The clutching structure of a rotary member according to claim 1, wherein The clutch telescopic device (11) includes clutch drive shaft (111) and spline shaft (112), the clutch drive shaft (111) is fixedly installed in the first support frame (12), the spline shaft (112) is connected the clutch drive shaft (111), and the clutch drive shaft (111) can drive the spline shaft (112) to extend or retract into the first support frame (12).

3. The clutching structure of a rotary member according to claim 2, wherein The outer wall of the spline shaft (112) has protrusion (114), and the inner wall of the first support frame (12) has recess (121) matched with the outer wall of the spline shaft (112).

4. The clutching structure of a rotary member according to claim 2, wherein The outer side of the first support frame (12) is equipped with cover plate (15), and the clutch drive shaft (111) passes through the cover plate (15) and is fixed in the first support frame (12).

5. A clutching mechanism for a wheel as claimed in claim 4, wherein The clutch drive shaft (111) includes peg head (115) and annular flange (116), the peg head (115) is located on the outer side of the cover plate (15), and the annular flange (116) is located on the inner side of the cover plate (15).

6. A clutching mechanism for a wheel as claimed in claim 4, wherein The clutch telescopic device (11) further includes spring (113), the spring (113) is sleeved on the periphery of the clutch drive shaft (111), and two ends are respectively abutted with the cover plate (15) and the spline shaft (112).

7. The clutching structure of a rotary member according to claim 1, wherein The drive shaft assembly (2) includes bevel gear (25) for being connected with motor, and the bevel gear (25) is connected at one end of the motor drive shaft (21) away from the second transmission flange (23).

8. The clutching structure of a rotary member according to claim 1, wherein Connection bearing (26) is arranged between the motor drive shaft (21) and the second support frame (22).

9. The clutching structure of a rotary member according to claim 1, wherein Further including connecting frame (4), the connecting frame (4) connects the first support frame (12) with the second support frame (22).

10. The clutching structure of a rotary member according to claim 9, wherein A first bearing (41) is arranged between the connecting frame (4) and the first support frame (12), and a second bearing (42) is arranged between the connecting frame (4) and the second support frame (22).

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