Transmission and its output shaft assembly

Abstract

The present invention discloses a transmission and its output shaft assembly. The output shaft assembly includes: a gear assembly having teeth on its outer side that mesh with the preceding gear in the transmission; an output shaft; a steering device capable of adjusting the angle of connection between the gear assembly and the output shaft; the steering device including a ball support frame and a plurality of balls; the ball support frame having a plurality of ball mounting positions arranged along the circumference of the ball support frame, the ball mounting positions corresponding to the balls one-to-one, and a portion of the balls embedded in the ball mounting positions; the output shaft and one component in the gear assembly are fixedly connected to the ball support frame; the output shaft and another component in the gear assembly have a plurality of slideways arranged along the circumference thereof, the slideways extending in the axial direction of the output shaft assembly, and the other portions of the balls embedded in the slideways. The output shaft assembly provided by the present invention facilitates the layout of the entire vehicle and is also easy to assemble.

Description

Technical Field

[0001] The present invention relates to the technical field of transmission equipment, and in particular to a transmission and an output shaft assembly thereof. Background Art

[0002] A transmission, also known as a transmission, changes the speed and torque of an input device such as an engine through the transmission ratio of its output shaft and input shaft.

[0003] Currently, the output shaft of a transmission is supported by bearings and has a fixed orientation. This orientation limits the placement of components connected to it (such as the final drive) and subsequent connected components, making vehicle layout difficult. Furthermore, it complicates assembly during powertrain assembly.

[0004] Therefore, how to facilitate the layout of the entire vehicle and reduce the difficulty of assembly is an urgent problem to be solved by people in this technical field. Summary of the Invention

[0005] In view of this, the present invention provides an output shaft assembly to facilitate vehicle layout and reduce assembly difficulty. The present invention also provides a transmission having the output shaft assembly.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] An output shaft assembly, comprising:

[0008] output shaft and steering gear;

[0009] The output shaft is mounted on the steering device, and the steering device is mounted on the gear assembly;

[0010] The steering device includes a ball, which is movably installed between the output shaft and the gear assembly to adjust the angle between the output shaft and the gear assembly.

[0011] Optionally, in the above output shaft assembly,

[0012] There are multiple balls;

[0013] The plurality of balls are arranged along the circumferential direction of the output shaft.

[0014] Optionally, in the above output shaft assembly,

[0015] The output shaft is formed with a slideway for the balls to slide;

[0016] The gear assembly is formed with a mounting hole for the ball to roll;

[0017] A portion of the ball is embedded in the mounting hole, and the other portion is arranged in the slideway.

[0018] Optionally, in the above output shaft assembly,

[0019] The output shaft is formed with a mounting hole for the ball to roll;

[0020] The gear assembly is formed with a slideway for the balls to slide;

[0021] A portion of the ball is embedded in the mounting hole, and the other portion is arranged in the slideway.

[0022] Optionally, in the above output shaft assembly,

[0023] The slideway is configured as an arc-shaped slideway, or the depth of the mounting hole is greater than the installation depth of the ball in the mounting hole;

[0024] Stoppers are provided at both ends of the slideway to prevent the balls from escaping from the slideway.

[0025] Optionally, in the above output shaft assembly,

[0026] A spring is provided in the mounting hole;

[0027] One end of the spring is connected to the bottom wall of the mounting hole, and the other end is connected to the ball.

[0028] Optionally, in the above output shaft assembly,

[0029] The steering device includes a support frame for limiting the position of the ball;

[0030] The support bracket is sleeved on the output shaft and is located between the output shaft and the gear assembly;

[0031] The support frame is provided with mounting positions corresponding one to one with the balls;

[0032] The ball is rollingly mounted on the mounting position.

[0033] Optionally, in the above output shaft assembly,

[0034] The output shaft and the gear assembly are both provided with a sliding groove for the ball to slide;

[0035] The support frame is fixedly connected to the output shaft or the gear assembly.

[0036] Optionally, in the above output shaft assembly,

[0037] The gear assembly includes an output gear, a gear housing, and a parking gear;

[0038] The output gear is mounted on the gear housing;

[0039] The steering device is provided in the inner cavity of the gear housing and is connected to the steering device;

[0040] The parking gear is arranged on the gear housing.

[0041] Optionally, in the above output shaft assembly,

[0042] A sealing cover is provided between the output shaft and the gear assembly.

[0043] The present invention further provides a transmission, comprising a transmission housing and an output shaft assembly disposed in the transmission housing, wherein the output shaft assembly is the output shaft assembly as described in any one of the above items;

[0044] The output shaft assembly includes an output shaft and a steering device;

[0045] The output shaft is mounted on the steering device, and the steering device is mounted on the gear assembly;

[0046] The steering device includes a ball, which is movably installed between the output shaft and the gear assembly to adjust the angle between the output shaft and the gear assembly.

[0047] Optionally, in the above transmission,

[0048] The output gear in the gear assembly is connected to a transmission gear arranged in the inner cavity of the transmission housing.

[0049] Optionally, in the above transmission,

[0050] The gear housing in the gear assembly is connected to the transmission housing through a first tapered bearing and a second tapered bearing;

[0051] The first tapered bearing and the second tapered bearing are installed with the same end facing each other.

[0052] As can be seen from the above technical solution, the output shaft assembly provided by the present invention connects the gear assembly and the output shaft via a steering device, allowing the gear assembly and the output shaft to adjust their connection angles via the ball bearings of the steering device. Specifically, by adjusting the position of the ball bearings relative to the gear assembly and the output shaft, the angle between the axis of the output shaft and the axis of the gear assembly can be adjusted, thereby achieving angular adjustment of the output shaft relative to the gear assembly. Because the outer side of the gear assembly has teeth that mesh with the preceding gear within the transmission, angular adjustment of the output shaft relative to the gear assembly allows for adjustment of the output shaft's direction, reducing restrictions on the placement of the output shaft and connected components (such as the final drive) and the placement of connected components, thereby facilitating overall vehicle layout. Furthermore, when installed within the powertrain, it facilitates assembly.

[0053] The present invention further provides a transmission comprising a transmission housing and an output shaft assembly disposed within the transmission housing, wherein the output shaft assembly is any of the output shaft assemblies described above. Since the output shaft assembly has the aforementioned technical effects, a transmission incorporating the output shaft assembly should also have the same technical effects, which are not detailed here. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0055] Figure 1 A perspective structural diagram of an output shaft assembly provided in an embodiment of the present invention;

[0056] Figure 2 A schematic structural diagram of a gear assembly provided in an embodiment of the present invention;

[0057] Figure 3 A schematic structural diagram of a ball provided in an embodiment of the present invention;

[0058] Figure 4 A schematic structural diagram of a ball support frame provided in an embodiment of the present invention;

[0059] Figure 5 A schematic structural diagram of an output shaft provided in an embodiment of the present invention;

[0060] Figure 6 A schematic structural diagram of a support bearing provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0061] The present invention discloses an output shaft assembly, which facilitates the layout of a vehicle and reduces the difficulty of assembly. The present invention also provides a transmission having the output shaft assembly.

[0062] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0063] like Figures 1-6 As shown, an embodiment of the present invention provides an output shaft assembly, including an output shaft 7 and a steering device; the output shaft 7 is installed on the steering device, and the steering device is installed on the gear assembly 1; the steering device includes a ball 2, which is movably installed between the output shaft 7 and the gear assembly 1 to adjust the angle between the output shaft 7 and the gear assembly 1.

[0064] The output shaft assembly provided in an embodiment of the present invention connects the gear assembly 1 and the output shaft 7 via a steering device, allowing the gear assembly 1 and the output shaft 7 to adjust their connection angles via the ball bearings 2 of the steering device. That is, by adjusting the position of the ball bearings 2 relative to the gear assembly 1 and the output shaft 7, the angle between the axis of the output shaft 7 and the axis of the gear assembly 1 is adjusted, thereby achieving angular adjustment of the output shaft 7 relative to the gear assembly 1. Because the outer side of the gear assembly 1 has teeth that mesh with the preceding gear in the transmission, angular adjustment of the output shaft 7 relative to the gear assembly 1 adjusts the direction of the output shaft 7, reducing restrictions on the placement of the output shaft 7 and the connecting components connected thereto (such as the final reducer, etc.), as well as the placement of the connecting components, thereby facilitating overall vehicle layout. Furthermore, when installed in the powertrain assembly, assembly is facilitated.

[0065] Preferably, the balls 2 are movably mounted between the output shaft 7 and the gear assembly 1 , but do not cause circumferential sliding between the output shaft 7 and the gear assembly 1 .

[0066] There are multiple balls 2, which are arranged along the circumference of the output shaft 7. Through the above arrangement, the angle adjustment between the output shaft 7 and the gear assembly 1 can be more uniform.

[0067] In the first embodiment, a slideway for the sliding of the ball 2 is formed on the output shaft 7; a mounting hole for the rolling of the ball 2 is formed on the gear assembly 1; a portion of the ball 2 is embedded in the mounting hole, and the other portion is set in the slideway. It is understood that the angle between the extension direction of the slideway and the axial direction of the output shaft 7 should be less than 90°, that is, there is an angle between the extension direction of the slideway and the radial direction of the output shaft 7. Preferably, the extension direction of the slideway is parallel to the axial direction of the output shaft 7. In the embodiment of the present invention, the angle between the center line of the output shaft 7 and the axis of the gear assembly 1 is adjusted by the different positions of the ball 2 in the corresponding slideway.

[0068] The ball 2 is embedded in the mounting hole so that the ball 2 rolls or is fixed in the mounting hole, that is, the ball 2 does not move significantly relative to the gear assembly 1 .

[0069] Wherein, the slide can be set to an arcuate slide, and blocks are provided at both ends of the slide to prevent the ball 2 from leaving the slide. Of course, the slide can also be set to a straight slide, which is not specifically limited and is within the scope of protection.

[0070] Furthermore, the depth of the mounting hole is greater than the installation depth of the ball 2 installed in the mounting hole to avoid the occurrence of a jamming situation.

[0071] In the second embodiment, a mounting hole for the rolling of the ball 2 is formed on the output shaft 7; a slideway for the sliding of the ball 2 is formed on the gear assembly 1; a portion of the ball 2 is embedded in the mounting hole, and the other portion is set in the slideway. It can be understood that the angle between the extension direction of the slideway and the axial direction of the gear assembly 1 should be less than 90°, that is, there is an angle between the extension direction of the slideway and the radial direction of the gear assembly 1. Preferably, the extension direction of the slideway is parallel to the axial direction of the gear assembly 1. In the embodiment of the present invention, the angle between the center line of the output shaft 7 and the axis of the gear assembly 1 is adjusted by the different positions of the ball 2 in the corresponding slideway.

[0072] The ball 2 is embedded in the mounting hole so that the ball 2 rolls or is fixed in the mounting hole, that is, the ball 2 does not move significantly relative to the output shaft 7 .

[0073] Likewise, the slideway can be configured as an arcuate slideway, with blocks provided at both ends of the slideway to prevent the ball 2 from disengaging from the slideway. Certainly, the slideway can also be configured as a linear slideway, which is not specifically limited and is within the scope of protection.

[0074] Furthermore, the depth of the mounting hole is greater than the installation depth of the ball 2 installed in the mounting hole to avoid the occurrence of a jamming situation.

[0075] In this embodiment, to ensure effective contact between the ball 2 and the slideway, a spring is provided in the mounting hole; one end of the spring is connected to the bottom wall of the mounting hole, and the other end is connected to the ball 2. The spring is preferably a compression spring, that is, it applies a squeezing force from the mounting hole to the slideway, ensuring effective contact between the ball 2 and the slideway while preventing the ball 2 from falling out of the mounting hole.

[0076] In this embodiment, the steering device includes a support frame 3 for limiting the position of the ball 2; the support frame 3 is sleeved on the output shaft 7 and is located between the output shaft 7 and the gear assembly 1; the support frame 3 is provided with mounting positions corresponding one to one to the ball 2; the ball 2 is rolled and installed on the mounting position.

[0077] In the embodiment where a slideway for the balls 2 to slide is formed on the output shaft 7 , the support frame 3 is fixedly connected to the gear assembly 1 , and the balls 2 are rollingly mounted on the mounting position of the support frame 3 .

[0078] In an embodiment in which a slideway for the balls 2 is formed on the gear assembly 1 , the support frame 3 is fixedly connected to the output shaft 7 , and the balls 2 are rollingly mounted on the mounting position of the support frame 3 .

[0079] Alternatively, both the output shaft 7 and the gear assembly 1 may be provided with a sliding groove for the balls 2 to slide; the support frame 3 may be fixedly connected to the output shaft 7 or the gear assembly 1. Specifically, in an embodiment in which the support frame 3 is fixedly connected to the output shaft 7, the balls 2 are mounted on the mounting position of the support frame 3 in a rolling manner and slideably engage with the sliding groove of the gear assembly 1. In an embodiment in which the support frame 3 is fixedly connected to the gear assembly 1, the balls 2 are mounted on the mounting position of the support frame 3 in a rolling manner and slideably engage with the sliding groove of the output shaft 7.

[0080] Specifically, a slideway is provided on the inner ring of the gear assembly 1; the output shaft 7 includes an output shaft section 73 and a first connecting shaft section 71 fixedly connected to the ball support bracket 3. This arrangement allows the first connecting shaft section 71 to extend into the inner ring of the gear assembly 1, with a steering device provided between the first connecting shaft section 71 and the inner ring of the gear assembly 1. The ball support bracket 3 is fixedly connected to the first connecting shaft section 71, with another portion of the ball 2 protruding from the outer wall of the ball support bracket 3, allowing the other portion of the ball 2 to be embedded in the slideway provided on the inner ring of the gear assembly 1. The rotational force of the gear assembly 1 is transmitted to the ball 2 via the slideway; since a portion of the ball 2 is embedded in the ball mounting position, the ball 2 drives the ball support bracket 3 to rotate; and since the ball support bracket 3 is fixedly connected to the first connecting shaft section 71, the ball support bracket 3 drives the first connecting shaft section 71 (output shaft 7) to rotate.

[0081] Of course, the slideway can also be provided on the outer wall of the output shaft 7; the ball support frame 3 is fixedly connected to the inner ring of the gear assembly 1. Through the above arrangement, the other part of the ball 2 protrudes from the inner wall of the ball support frame 3. In this embodiment, the ball support frame 3 includes an outer ring 31 and a plurality of support legs 32 provided on the inner wall of the outer ring 31. The outer ring 31 has a mounting hole for the ball 2 to pass through, and support legs 32 are provided on both sides of the mounting hole. The two support legs 32 on both sides of the mounting hole form a mounting area 33 for supporting the ball 2. In other words, the ball 2 does not contact the output shaft 7. The ball 2 is supported by the ball support frame 3, so that the ball 2 cooperates with the slideway, avoiding friction loss between the ball 2 and the output shaft 7. The mounting hole restricts the ball 2 from escaping from the ball support frame 3.

[0082] Of course, it is also possible to have only the mounting hole for the ball support frame 3, with a portion of the ball 2 positioned above the ball support frame 3 (on the side of the ball support frame 3 close to the gear assembly 1), and another portion of the ball 2 positioned below the ball support frame 3 (on the side of the ball support frame 3 close to the output shaft 7). The portion of the ball 2 positioned above the ball support frame 3 engages with the slideway, while the portion of the ball 2 positioned below the ball support frame 3 contacts the output shaft 7. Preferably, a corresponding groove structure can be machined on the outer surface of the output shaft 7 to facilitate engagement of the portion of the ball 2 positioned below the ball support frame 3 with the groove structure.

[0083] Furthermore, to facilitate layout, the outer wall of the first connecting shaft segment 71 is fixedly connected to the end of the support leg 32 away from the outer ring 31. That is, the ball support frame 3 is sleeved on the outside of the first connecting shaft segment 71. The first connecting shaft segment 71 and the support leg 32 can be connected by a fixed structure such as welding, bolt connection, integral injection molding, or snap connection.

[0084] Of course, the side end face of the ball support frame 3 can also be fixedly connected to the end face of the first connecting shaft segment 71. The side end face of the ball support frame 3 fixedly connected to the end face of the first connecting shaft segment 71 can be the side end face of the outer ring 31, the side end face of the support leg 32, or the side end faces of the outer ring 31 and the support leg 32.

[0085] The output shaft 7 also has a second connecting shaft section 72 for mounting the parking gear 5; the second connecting shaft section 71 is located between the output shaft section 73 and the first connecting shaft section 71. To facilitate turning, the diameter of the first connecting shaft section 71 is larger than that of the second connecting shaft section 72, and the diameter of the second connecting shaft section 72 is larger than that of the output shaft section 73.

[0086] The gear assembly 1 includes a gear ring 13 having gear teeth and a mounting plate 11 disposed within the gear ring 13. The mounting plate 11 has a mounting hole 12 through which the output shaft segment 73 passes. A slideway is located on the inner wall of the gear ring 13 and on one side of the mounting plate 11. The diameter of the mounting hole 12 is smaller than that of the steering device. This arrangement allows the steering device to be located on one side of the mounting plate 11, with the first connecting shaft segment 71 of the output shaft 7 mating with the steering device. The output shaft segment 73 of the output shaft 7 can pass through the mounting hole 12 and be located on the other side of the mounting plate 11. This arrangement facilitates the installation of the gear assembly 1 and the steering device, ensuring their assembly stability. Alternatively, the gear assembly 1 may consist solely of a gear ring having gear teeth, with the slideway located on the inner wall of the gear ring 13 and the steering device's ball bearing 2 mating with the slideway.

[0087] In this embodiment, the diameter of the mounting hole 12 is smaller than the diameter of the first connecting shaft section 71. Through the above arrangement, during the installation process, it is ensured that the first connecting shaft section 71 of the output shaft 7 cannot pass through the mounting hole 12, facilitating the assembly operation of the output shaft assembly.

[0088] Furthermore, the mounting hole 12 has a clearance fit with the second connecting shaft segment 72 of the output shaft 7. This arrangement facilitates the overall layout while ensuring that the mounting hole 12 does not interfere with the angular adjustment of the output shaft 7 according to the steering mechanism. Alternatively, the mounting hole 12 can have a clearance fit with the output shaft segment 73 of the output shaft 7, which will not be discussed in detail here and is within the scope of this disclosure.

[0089] For easy connection, the outer surface of the output shaft section 73 has a connecting spline. The connecting spline on the outer surface of the output shaft section 73 is connected to the input component of the next connecting component (such as the final reducer, etc.), which effectively improves the connection stability and can better transmit the kinetic force.

[0090] Of course, the output shaft segment 73 may also be connected to the input component of the next connecting component (such as a final reducer) via a key (such as a flat key, a semicircular key, a wedge key or a tangential key).

[0091] The gear assembly 1 includes an output gear, a gear housing, and a parking gear 5. The output gear is mounted on the gear housing. A steering mechanism is located within the gear housing and connected to the steering mechanism. The parking gear 5 is mounted on the gear housing. In other words, the output gear is connected to the gear housing, which in turn is connected to the steering mechanism, thereby enabling power transmission between the output gear and the steering mechanism.

[0092] In this embodiment, the parking gear 5 is provided on the gear housing. It is understood that the parking gear 5 is fixedly connected to the gear housing. The parking gear 5 and the gear housing can be fixed by press-fitting, spline connection, key connection, or connected by welding or connecting members (such as screws). It is only necessary to ensure that the parking gear 5 and the gear housing rotate synchronously.

[0093] The parking gear 5 may also be fixed to other components of the output shaft assembly.

[0094] For example, the parking gear 5 is fixedly connected to the second connecting portion 321. The parking gear 5 and the second connecting portion 321 can be fixed by press-fitting, splined, or keyed, or the parking gear 5 and the second connecting portion 321 can be connected by welding or a connector (such as a screw). It is only necessary to ensure that the parking gear 5 and the second connecting portion 321 rotate synchronously. Alternatively, the parking gear 5 is fixedly connected to the second connecting shaft segment 322. The parking gear 5 and the second connecting shaft segment 322 can be fixed by press-fitting, splined, or keyed, or the parking gear 5 and the second connecting shaft segment 322 can be connected by welding or a connector (such as a screw). It is only necessary to ensure that the parking gear 5 and the second connecting shaft segment 322 rotate synchronously. The parking gear 5 can also be fixedly connected to the rotating member. Through the above arrangement, the parking gear 5 cannot change angle with the adjustment of the rotating member. Of course, the parking gear 5 may be fixedly connected to the output shaft 7 ; or the parking gear 5 may be fixedly connected to the first connecting member 31 , both of which can achieve the parking operation.

[0095] A sealing cover is provided between the output shaft 7 and the gear assembly 1. Specifically, in this embodiment, a portion of the output shaft 7 extends into the gear housing to connect with the steering mechanism located therein, while another portion of the output shaft 7 extends out of the gear housing. To prevent dust and impurities from entering the gear housing through the opening in the gear housing through which the output shaft 7 extends, a sealing cover is provided between the output shaft 7 and the gear housing opening. To ensure that the angle adjustment of the output shaft 7 is not affected, the sealing cover is preferably a flexible sealing cover, that is, a material with a large elastic deformation capacity, such as rubber.

[0096] An embodiment of the present invention further provides a transmission comprising a transmission housing and an output shaft assembly disposed within the transmission housing, wherein the output shaft assembly is any of the output shaft assemblies described above. The output shaft assembly includes an output shaft 7 and a steering device; the output shaft 7 is mounted on the steering device, which is mounted on a gear assembly 1; the steering device includes a ball bearing 2 movably mounted between the output shaft 7 and the gear assembly 1 to adjust the angle between the output shaft 7 and the gear assembly 1. Since the output shaft assembly described above has the aforementioned technical effects, a transmission incorporating the output shaft assembly should also have the same technical effects, and therefore will not be elaborated upon here.

[0097] Preferably, the transmission is a DHT (Dedicated Hybrid Transmission) transmission.

[0098] The output gear in the gear assembly 1 is connected to the transmission gear arranged in the inner cavity of the transmission housing. Through the above arrangement, power transmission is achieved.

[0099] To enhance the rotational stability of the output shaft assembly, the gear housing in gear assembly 1 is connected to the transmission housing via a first tapered bearing and a second tapered bearing. The first and second tapered bearings are mounted with their like-named ends facing each other. This arrangement improves the rotational stability of the output shaft assembly. The like-named ends of the first and second tapered bearings are mounted opposite each other, with the larger diameter end of the first tapered bearing facing the larger diameter end of the second tapered bearing.

[0100] The transmission in this embodiment can also employ other structures, such as needle roller bearings, for the support bearings used to rotatably support the output shaft assembly in the transmission housing. For example, support bearing 4 can be positioned outside output shaft 7 and sleeved thereon. This directly connects output shaft 7 to support bearing 4. Support bearing 4 is preferably a needle roller bearing to enhance structural compactness. Alternatively, gear assembly 1 can include a mounting sleeve 11 coaxial with its inner bore, with support bearing 2 sleeved outside mounting sleeve 11. This directly connects support bearing 2 to gear assembly 1.

[0101] Furthermore, the supporting output shaft assembly further includes a parking gear 5, which is fixed to the output shaft 7. Preferably, the parking gear 5 is fixed to the outside of the second connecting shaft section 72 of the output shaft 7. The parking gear 5 can be fixed to the second connecting shaft section 72 by means of a spline or a flat key.

[0102] Furthermore, the transmission provided by the embodiment of the present invention further includes a parking bearing 6 connected to the parking gear 5 ; a gap is provided between the inner hole of the parking bearing 6 and the outer wall of the output shaft 7 .

[0103] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0104] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An output shaft assembly, characterized in that: include: Output shaft (7) and steering gear; The output shaft (7) is mounted on the steering device, and the steering device is mounted on the gear assembly (1); The steering device comprises a ball (2), and the ball (2) is movably mounted between the output shaft (7) and the gear assembly (1) to adjust the angle between the axis of the output shaft (7) and the axis of the gear assembly (1); A slideway for the balls (2) to slide is formed on the output shaft (7); The gear assembly (1) is formed with a mounting hole for the rolling ball (2); A portion of the ball (2) is embedded in the mounting hole, and another portion is arranged in the slideway; The slideway is configured as an arc-shaped slideway, or the depth of the mounting hole is greater than the installation depth of the ball (2) installed in the mounting hole; A spring is provided in the mounting hole; One end of the spring is connected to the bottom wall of the mounting hole, and the other end is connected to the ball (2).

2. An output shaft assembly, characterized in that: include: Output shaft (7) and steering gear; The output shaft (7) is mounted on the steering device, and the steering device is mounted on the gear assembly (1); The steering device comprises a ball (2), and the ball (2) is movably mounted between the output shaft (7) and the gear assembly (1) to adjust the angle between the axis of the output shaft (7) and the axis of the gear assembly (1); The output shaft (7) is formed with a mounting hole for the balls (2) to roll; A slideway for the balls (2) to slide is formed on the gear assembly (1); A portion of the ball (2) is embedded in the mounting hole, and another portion is arranged in the slideway; The slideway is configured as an arc-shaped slideway, or the depth of the mounting hole is greater than the installation depth of the ball (2) installed in the mounting hole; A spring is provided in the mounting hole; One end of the spring is connected to the bottom wall of the mounting hole, and the other end is connected to the ball (2).

3. The output shaft assembly according to claim 1 or 2, characterized in that: The rolling balls (2) are provided in plurality; The plurality of balls (2) are arranged along the circumferential direction of the output shaft (7).

4. The output shaft assembly according to claim 1 or 2, characterized in that: Stoppers are provided at both ends of the slideway to prevent the ball (2) from escaping from the slideway.

5. The output shaft assembly according to claim 3, wherein: The steering device comprises a support frame (3) for limiting the position of the ball (2); The support frame (3) is sleeved on the output shaft (7) and is located between the output shaft (7) and the gear assembly (1); The support frame (3) is provided with mounting positions corresponding one to one with the balls (2); The ball (2) is rollingly mounted on the mounting position.

6. The output shaft assembly according to claim 5, wherein: The output shaft (7) and the gear assembly (1) are both provided with a sliding groove for the ball (2) to slide; The support frame (3) is fixedly connected to the output shaft (7) or the gear assembly (1).

7. The output shaft assembly according to claim 1 or 2, wherein: The gear assembly (1) comprises an output gear, a gear housing, and a parking gear (5); The output gear is mounted on the gear housing; The steering device is provided in the inner cavity of the gear housing and is connected to the steering device; The parking gear (5) is arranged on the gear housing.

8. The output shaft assembly according to claim 1 or 2, characterized in that: A sealing cover is provided between the output shaft (7) and the gear assembly (1).

9. A transmission, characterized in that: It comprises a transmission housing and an output shaft assembly disposed in the transmission housing, wherein the output shaft assembly is the output shaft assembly according to any one of claims 1 to 8; The output shaft assembly comprises an output shaft (7) and a steering device; The output shaft (7) is mounted on the steering device, and the steering device is mounted on the gear assembly (1); The steering device comprises a ball (2), and the ball (2) is movably mounted between the output shaft (7) and the gear assembly (1) to adjust the angle between the output shaft (7) and the gear assembly (1).

10. The transmission according to claim 9, wherein: The output gear in the gear assembly (1) is connected to a transmission gear arranged in the inner cavity of the transmission housing.

11. The transmission according to claim 9 or 10, characterized in that The gear housing in the gear assembly (1) is connected to the transmission housing via a first tapered bearing and a second tapered bearing; The first tapered bearing and the second tapered bearing are installed with the same end facing each other.

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