Hub motor with traction rope fixing structure

Abstract

The utility model relates to the technical field of motors, in particular to a hub motor with a traction rope fixing structure. Comprising a front end cover and a rear end cover, a rim is clamped between the front end cover and the rear end cover, the front end cover is arranged on one side of the rim in the axial direction, the rear end cover is arranged on the other side of the rim in the axial direction, a containing cavity is defined by the front end cover, the rear end cover and the rim, a motor assembly is arranged in the containing cavity, and a motor shaft is arranged on the motor assembly. The motor shaft is in transmission connection with the motor assembly; an extending part is arranged on the rear end cover, a penetrating channel is defined by the extending part, a brake disc is arranged at the end, away from the rear end cover, of the extending part, a gap is formed between the extending part and the motor shaft, a limiting hole is formed in the extending part, the limiting hole is communicated with the gap, and a containing groove is formed in the extending part in an inwards-concave mode and used for flatly laying a traction rope. A cover plate is detachably connected to the extending piece, and the traction rope is clamped through the cover plate and the groove bottom of the containing groove. The traction rope fixing device has the effect that the traction rope is fixedly installed on the hub motor quickly and stably.

Description

Technical Field

[0001] The present application relates to the field of motor technology, and in particular to a hub motor with a traction rope fixing structure. Background Art

[0002] Conventional hub motors with traction ropes typically secure the rope to the motor end cap using multiple bolts on the end cap. This method occupies a large space, has low end cap fixing strength, and the bolts are prone to thread slippage. The process is complex and makes it difficult to quickly and stably secure the rope to the motor.

[0003] Therefore, based on the above problems, the existing technology needs to be improved. Utility Model Content

[0004] The purpose of this application is to be able to quickly and stably fix the traction rope on the hub motor.

[0005] The above technical objectives of the present application are achieved through the following technical solutions: A hub motor with a traction rope fixing structure, comprising a front end cover and a rear end cover, a rim being clamped between the front end cover and the rear end cover, the front end cover being arranged on one side of the rim in the axial direction, and the rear end cover being arranged on the other side of the rim in the axial direction, the front end cover, the rear end cover and the rim together form an accommodating cavity, a motor assembly is arranged in the accommodating cavity, the motor assembly is provided with a motor shaft, and the motor shaft and the motor assembly are transmission-connected; an extension portion is provided on the rear end cover, the extension portions together form a through-channel, a brake disc is provided at one end of the extension portion away from the rear end cover, a gap is provided between the extension portion and the motor shaft, a limiting hole is provided on the extension portion, the limiting hole and the gap are arranged in conductive communication, a accommodating groove is formed inwardly on the extension portion for laying the traction rope flat, a cover plate is detachably connected to the extension portion, and the traction rope is clamped by the cover plate and the bottom of the accommodating groove.

[0006] By adopting the above technical solution, the motor assembly is enclosed by the front cover, rim, and rear cover. The rim and motor assembly are connected in a transmission manner. Current is supplied to the motor assembly via a power supply. After receiving the electrical energy, the motor assembly converts the electrical energy into rotational force through the magnetic field generated by the energization, causing the rim to rotate relative to the motor shaft. The cover plate on the extension is removed and separated from the extension. The traction rope is accommodated in the gap between the motor shaft and the extension. One end of the traction rope is confined within the gap, and the other end of the traction rope is flattened into the accommodating groove after passing through the limiting hole. The cover plate is installed in the accommodating groove, so that the cover plate and the bottom of the accommodating groove stably clamp the traction rope, allowing the traction rope to be easily, quickly and stably installed on the hub motor.

[0007] Optionally, a bypass channel is provided on the brake disc, the bypass channel is connected to the accommodating groove, and a bypass space is formed between a side of the cover plate away from the bottom of the accommodating groove and an inner wall of the bypass channel.

[0008] By adopting the above technical solution, the traction rope is stably clamped by the cover plate and the bottom of the accommodating groove. After the end of the traction rope away from the limiting hole passes through the bypass channel, it is bypassed through the cover plate and passes through the bypass space to form a "C"-shaped bypass cover plate, which further stabilizes the installation of the traction rope, increases the contact area between the traction rope and the cover plate, changes the setting direction of the traction rope, and improves the working effect of the traction rope.

[0009] Optionally, a limiting member is provided at one end of the cover plate close to the bypass channel.

[0010] By adopting the above technical solution, the horizontal sliding of the traction rope relative to the cover plate is reduced, the friction between the traction rope and the cover plate is reduced, the service life of the traction rope is increased, and the possibility of wear is reduced.

[0011] Optionally, a curved groove is concavely provided at one end of the cover plate close to the bypass channel, and the groove wall of the curved groove is curved.

[0012] By adopting the above technical solution, the traction rope is engaged through the curved groove, the setting of the traction rope is stabilized, and the friction damage between the cover plate and the traction groove is reduced by the curved surface setting, thereby improving the service life of the traction rope.

[0013] Optionally, a first engaging groove is formed inwardly on the bottom of the accommodating groove, and a second engaging groove is formed inwardly on the cover plate. The first engaging groove and the second engaging groove are combined to form an engaging channel for engaging the traction rope.

[0014] By adopting the above technical solution, the contact area between the cover plate and the bottom of the accommodating groove and the traction rope is increased through the first interlocking groove and the second interlocking groove, the stability of the traction rope being clamped is improved, and the traction rope is passed through the interlocking channel to reduce the possibility of sliding and wear of the traction rope.

[0015] Optionally, the motor assembly includes a stator and a rotor, the stator is in driving connection with the motor shaft, and the rotor surrounds the outside of the stator and is in driving connection with the rim.

[0016] By adopting the above technical solution, after connecting to the power supply, the magnetic field interaction between the stator and the rotor converts the electrical energy into rotational force, and the rotor drives the rim to rotate.

[0017] Optionally, a mounting groove is formed inwardly at the bottom of the accommodating groove, and a mounting hole is provided on the cover plate.

[0018] By adopting the above technical solution, the fixing bolt is passed through the mounting hole, and the fixing bolt is installed at the bottom of the accommodating groove through the mounting groove, so that the cover plate is installed in the accommodating groove.

[0019] Optionally, a first bearing is provided on the front end cover, the motor shaft is passed through the first bearing, a second bearing is provided on the rear end cover, the motor shaft is passed through the second bearing, and a third bearing is provided on the brake disc, the motor shaft is passed through the third bearing.

[0020] By adopting the above technical solution, the friction between the front cover, the rear cover and the brake disc and the motor shaft is reduced, making the rotation more stable and smooth.

[0021] In summary, this application has at least the following beneficial effects:

[0022] 1. The motor assembly is enclosed by the front cover, rim, and rear cover. Current is supplied to the motor assembly through a power supply. The motor assembly receives the electrical energy and converts it into rotational force through the magnetic field generated by the current flow, causing the entire wheel hub to rotate. The cover on the extension is removed to separate the extension. The gap between the motor shaft and the extension accommodates the traction rope. One end of the traction rope is restrained within the gap, and the other end of the traction rope is passed through the limiting hole and flattened into the accommodating groove. The cover is then installed into the accommodating groove, ensuring that the cover and the groove bottom firmly clamp the traction rope. This allows for a simple, quick, and stable installation of the traction rope on the in-wheel motor.

[0023] 2. The traction rope is stably clamped by the cover plate and the bottom of the accommodating groove. After the end of the traction rope away from the limiting hole passes through the bypass channel, it is bypassed through the cover plate and passes through the bypass space to form a "C"-shaped bypass cover plate, which further stabilizes the installation of the traction rope, increases the contact area between the traction rope and the cover plate, changes the setting direction of the traction rope, and improves the working effect of the traction rope. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural diagram of a hub motor with a traction rope fixing structure;

[0025] Figure 2 It is a cross-sectional view of a hub motor with a traction rope fixing structure;

[0026] Figure 3 It is a structural diagram of the accommodating tank;

[0027] Figure 4 It is a structural diagram of the cover;

[0028] Figure 5 This is an exploded view of a hub motor with a traction rope fixing structure.

[0029] Reference numerals

[0030] 1. Front end cover; 2. Rear end cover; 3. Rim; 4. Accommodating chamber; 5. Motor assembly; 51. Stator; 52. Rotor; 6. Motor shaft; 7. Extension; 8. Through passage; 9. Brake disc; 10. Gap; 11. Limiting hole; 12. Accommodating groove; 13. Traction rope; 14. Cover plate; 15. Surrounding passage; 16. Surrounding space; 17. Limiting member; 18. Curved groove; 19. First fitting groove; 20. Second fitting groove; 21. Fitting passage; 22. Mounting groove; 23. Mounting hole; 24. First bearing; 25. Second bearing; 26. Third bearing. DETAILED DESCRIPTION

[0031] The present application is further described in detail below with reference to the accompanying drawings.

[0032] In this embodiment, referring to Figure 1 and Figure 2 A hub motor with a traction rope 13 fixing structure includes a front cover 1 and a rear cover 2. A rim 3 is sandwiched between the front cover 1 and the rear cover 2. The rim 3 is preferably a wheel rim made of steel material and is tubular. The front cover 1 is arranged on one side of the rim 3 in the axial direction, and the rear cover 2 is arranged on the other side of the rim 3 in the axial direction. The front cover 1, the rear cover 2 and the rim 3 together form an accommodating cavity 4. A motor assembly 5 is arranged in the accommodating cavity 4. The motor assembly 5 is transmission-connected to a motor shaft 6. The motor assembly 5 is transmission-connected to the rim 3, and the motor shaft 6 passes through the front cover 1 and the rear cover 2. When the power supply is connected, the motor assembly 5 receives electrical energy and converts the electrical energy into rotational force through the magnetic field generated by the power supply, so that the rim 3 and the front cover 1 and the rear cover 2 can rotate relative to the motor shaft 6.

[0033] In this embodiment, referring to Figure 1 and Figure 2 An extension portion 7 is provided on the side of the rear end cover 2 away from the rim 3. The extension portion 7 is preferably tubular and has a through-hole 8. The extension portion 7 is fitted with the motor shaft 6 that passes through the rear end cover 2 through the through-hole 8. A certain gap 10 is formed between the extension portion 7 and the motor shaft 6. One end of the traction rope 13 is arranged in the gap 10 by tying a knot, and the other end is passed through the limiting hole 11 on the extension portion 7 and away from the gap 10. The knotted end of the traction rope 13 cannot pass through the limiting hole 11 and is stably arranged in the gap 10. A recessed accommodating groove 12 is provided on the extension portion 7. The traction rope 13 that passes through the limiting hole 11 is flattened into the accommodating groove 12, so that the flattened portion of the traction rope 13 and the portion that passes through the limiting hole 11 form a certain angle. The extension portion is detachably provided with a cover plate 14 . By installing the cover plate 14 , the cover plate 14 and the bottom of the accommodating groove 12 clamp the traction rope 13 , stabilizing the installation of the traction rope 13 and improving the efficiency of installing the traction rope 13 on the motor.

[0034] In this embodiment, referring to Figure 2 and Figure 3 A bypass channel 15 is provided on the brake disc 9, and the bypass channel 15 is connected to the receiving groove 12. The traction rope 13 laid flat in the receiving groove 12 can pass through the bypass channel 15. After the traction rope 13 is laid flat, the traction rope 13 is clamped and stabilized at the bottom of the receiving groove 12 by the cover plate 14. A bypass space 16 is reserved between the side of the cover plate 14 away from the bottom of the receiving groove 12 and the inner wall of the bypass channel 15. The traction rope 13 passing through the bypass channel 15 from the receiving groove 12 forms a "C" shape and then passes through the bypass space 16 from the bypass channel 15, so that the traction rope 13 clamps the cover plate 14, increases the contact area between the cover plate 14 and the traction rope 13, changes the setting direction of the traction rope 13, and increases the stability of the traction rope 13 by folding.

[0035] In this embodiment, referring to Figure 4 A stopper 17 is provided at one end of the cover plate 14 near the routing channel 15. The stopper 17 and the inner wall of the routing channel 15 together form a routing space 16 that is just right for the traction rope 13 to pass through. This stabilizes the placement of the traction rope 13, reduces the horizontal sliding of the traction rope 13 on the cover plate 14, and reduces the sliding friction between the traction rope 13 and the cover plate 14. A curved groove 18 is concavely provided at one end of the cover plate 14 near the routing channel 15. The groove wall of the curved groove 18 is curved. When the traction rope 13 is routed, it fits into the curved groove 18. The curved groove wall of the curved groove 18 reduces the friction between the traction rope 13 and the cover plate 14.

[0036] In this embodiment, referring to Figure 2-4 The bottom of the receiving groove 12 is concave to form a first interlocking groove 19, and the side of the cover plate 14 close to the bottom of the receiving groove 12 is concave to form a second interlocking groove 20. When the cover plate 14 is installed on the extension part, the first interlocking groove 19 and the second interlocking groove 20 are combined to form an interlocking channel 21. The traction rope 13 passing through the limiting hole 11 is guided by the interlocking channel 21, and the traction rope 13 is flatly and stably set in the receiving groove 12. A mounting groove 22 is concave in the bottom of the receiving groove 12, and the inner wall of the mounting groove 22 is preferably provided with a thread, and a mounting hole 23 is provided at a corresponding position on the cover plate 14. When the cover plate 14 is installed, the mounting hole 23 on the cover plate 14 is penetrated by the mounting bolt, and the mounting bolt is installed on the extension part through the mounting groove 22, so that the cover plate 14 can be detached or installed on the extension part.

[0037] In this embodiment, referring to Figure 5The motor assembly 5 includes a stator 51 and a rotor 52. The stator 51 is in driving connection with the motor shaft 6. The rotor 52 surrounds the outside of the stator 51 and is in driving connection with the rim 3. Preferably, the stator 51 and the motor shaft 6 are fixedly connected. The rotor 52 is provided on the side of the stator 51 away from the motor shaft 6. The rotor 52 is preferably a magnet that is in driving connection with the rim 3 through magnetic force. When the motor assembly 5 is energized, the motor assembly 5 receives electrical energy and converts it into rotational force through the magnetic field generated by the energization. The rotor 52 drives the rim 3 to rotate relative to the motor shaft 6 through the magnetic force.

[0038] In this embodiment, referring to Figure 2 and Figure 5 A first bearing 24, a second bearing 25, and a third bearing 26 are respectively provided at the locations where the front cover 1, the rear cover 2, and the brake disc 9 are passed through by the motor shaft 6. When the motor shaft 6 passes through the first bearing 24, the second bearing 25, and the third bearing 26, the front cover 1, the rear cover 2, and the brake disc rotate more smoothly relative to the motor shaft 6.

[0039] The embodiments of this specific implementation method are all preferred embodiments of the present application and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A hub motor with a traction rope fixing structure, characterized in that: The invention comprises a front end cover (1) and a rear end cover (2), wherein a rim (3) is sandwiched between the front end cover (1) and the rear end cover (2), wherein the front end cover (1) is arranged on one side of the rim (3) in the axial direction, and the rear end cover (2) is arranged on the other side of the rim (3) in the axial direction, wherein the front end cover (1), the rear end cover (2) and the rim (3) are surrounded to form a receiving cavity (4), wherein a motor assembly (5) is arranged in the receiving cavity (4), wherein a motor shaft (6) is arranged on the motor assembly (5), and wherein the motor shaft (6) is transmission-connected to the motor assembly (5); wherein the rear end cover (2) is provided with an extending The extension part (7) is enclosed by the extension part (7) to form a through passage (8), a brake disc (9) is provided at one end of the extension part away from the rear end cover (2), a gap (10) is provided between the extension part (7) and the motor shaft (6), a limiting hole (11) is provided on the extension part (7), the limiting hole (11) and the gap (10) are connected, a receiving groove (12) is formed inwardly on the extension part for laying a traction rope (13), and a cover plate (14) is detachably connected to the extension part, and the traction rope (13) is clamped by the cover plate (14) and the bottom of the receiving groove (12).

2. The hub motor with a traction rope fixing structure according to claim 1, characterized in that: The brake disc (9) is provided with a bypass channel (15), the bypass channel (15) and the accommodating groove (12) are in communication, and a bypass space (16) is formed between a side of the cover plate (14) away from the bottom of the accommodating groove (12) and an inner wall of the bypass channel (15).

3. The hub motor with a traction rope fixing structure according to claim 2, characterized in that: A limiting member (17) is provided at one end of the cover plate (14) close to the bypass channel (15).

4. The hub motor with a traction rope fixing structure according to claim 3, characterized in that: A curved groove (18) is concavely provided at one end of the cover plate (14) close to the bypass channel (15), and the groove wall of the curved groove (18) is arranged with a curved surface.

5. The hub motor with a traction rope fixing structure according to claim 1, characterized in that: The bottom of the accommodating groove (12) is concavely formed with a first engaging groove (19), and the cover plate (14) is concavely formed with a second engaging groove (20); the first engaging groove (19) and the second engaging groove (20) are combined to form an engaging channel (21) for engaging the traction rope (13).

6. The hub motor with a traction rope fixing structure according to claim 1, characterized in that: The motor assembly (5) comprises a stator (51) and a rotor (52); the stator (51) is drivingly connected to the motor shaft (6); and the rotor (52) surrounds the outer side of the stator (51) and is drivingly connected to the wheel rim (3).

7. The hub motor with a traction rope fixing structure according to claim 1, characterized in that: The bottom of the accommodating groove (12) is concavely formed with a mounting groove (22), and the cover plate (14) is provided with a mounting hole (23).

8. The hub motor with a traction rope fixing structure according to claim 1, characterized in that: The front end cover (1) is provided with a first bearing (24), and the motor shaft (6) is passed through the first bearing (24); the rear end cover (2) is provided with a second bearing (25), and the motor shaft (6) is passed through the second bearing (25); the brake disc (9) is provided with a third bearing (26), and the motor shaft (6) is passed through the third bearing (26).

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