Gearbox shell supporting structure

Abstract

The utility model discloses a gearbox shell supporting structure which comprises a supporting mechanism, the supporting mechanism is movably connected with a parking mechanism, the supporting mechanism comprises a supporting assembly connected to the inner wall of a gearbox shell and a limiting piece arranged on the supporting assembly in a clamped mode, and the limiting piece is movably connected with the parking mechanism. A moving space used for rotation of the parking mechanism is reserved between the supporting assembly and the bottom of the gearbox shell, and the limiting piece is arranged on the supporting assembly in a clamped mode so as to limit overturning of the parking mechanism. The supporting assembly and the gearbox shell are optimized to be of an integral structure, the supporting assembly and the gearbox shell blank are integrally formed, additional assembly is not needed, and the part cost and the assembly cost are directly saved.

Description

Technical Field

[0001] This utility model relates to the field of automotive transmissions, specifically to a transmission housing support structure. Background Technology

[0002] The gearbox housing is the basic component of the gearbox. It supports and encloses all the components inside the gearbox, such as gears, shafts, bearings, and shifting mechanisms, ensuring that they maintain the correct relative positions and transmit power in a coordinated manner according to certain transmission relationships.

[0003] In existing gearbox layouts, shafts with moving parts that transmit torque or experience significant forces typically require matching shaft holes or bearing housing holes on both sides of the housing to ensure reliable shaft support and reduce shaft deflection and misalignment of moving parts. For gearboxes with limited internal space where only one side of the housing can have support shaft holes, an additional support bracket is installed to ensure reliable shaft support.

[0004] However, while the aforementioned support structure meets the design requirements, it inevitably increases the cost of parts and assembly, and also has a spatial impact on the arrangement of other parts in the gearbox. Utility Model Content

[0005] Therefore, the purpose of this utility model is to provide a gearbox housing support structure, which aims to solve the problem that although the current support structure meets the design requirements, it inevitably increases the cost of parts and assembly, and also affects the spatial arrangement of other parts inside the gearbox.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a gearbox housing support structure, the gearbox housing support structure comprising:

[0007] The support mechanism includes a support assembly connected to the inner wall of the gearbox housing, and a limiting member engaged on the support assembly, wherein a parking mechanism is movably connected to the limiting member;

[0008] The support assembly and the bottom of the gearbox housing have a space for the parking mechanism to rotate, and the limiting member is engaged with the support assembly to restrict the parking mechanism from flipping.

[0009] In summary, the gearbox housing support structure proposed in this utility model optimizes the support component and gearbox housing into an integral structure, integrally formed with the gearbox housing blank, eliminating the need for additional assembly and directly saving on parts and assembly costs. The support component eliminates the need for corresponding shaft holes or bearing seat holes on the other side of the housing. The multi-point connection between the support component and the gearbox housing ensures the strength of the support component, reduces the probability of casting defects due to excessive wall thickness, and simultaneously reduces the weight of the gearbox housing. Furthermore, a space is provided between the support component and the bottom of the gearbox housing for the rotation of the parking mechanism, reducing the impact on parts placement. A limiting member is engaged with the support component to restrict the rotation of the parking mechanism.

[0010] According to one aspect of the above technical solution, the support assembly includes a support member and a plurality of connecting arms disposed on the support member, wherein the two ends of the connecting arms are respectively connected to the support member and the inner wall of the gearbox housing.

[0011] According to one aspect of the above technical solution, the support member has a mounting groove extending through its end face along a first direction at its center, and the movable space is located between the support member and the bottom of the gearbox housing.

[0012] According to one aspect of the above technical solution, the support member has a slot along the second direction, and the slot is connected to and perpendicular to the mounting groove.

[0013] According to one aspect of the above technical solution, the parking mechanism includes a parking shaft passing through a mounting groove, a parking arm located at one end of the parking shaft, and a parking ratchet located on the gearbox housing, wherein the parking arm is movably connected to one end of the parking shaft.

[0014] According to one aspect of the above technical solution, the circumferential surface of the parking shaft is also provided with an annular groove.

[0015] According to one aspect of the above technical solution, the limiting member is disposed in the slot and is engaged in the annular groove on the parking axle.

[0016] According to one aspect of the above technical solution, one end of the limiting member abuts against the inner wall of the gearbox housing, and the other end is fastened to the parking arm.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the gearbox housing support structure in one embodiment of the present invention;

[0019] Figure 2This is a schematic diagram of the limiting member in one embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the parking arm in one embodiment of the present invention.

[0021] Component symbol explanation in the attached diagram:

[0022] The gearbox housing 1, support 10, connecting arm 101, mounting groove 11, slot 12, clearance groove 13, support boss 14, parking shaft 2, limiter 3, parking arm 4, parking ratchet 5. Detailed Implementation

[0023] To make the objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Several embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0024] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," "upper," "lower," and similar expressions used herein are for illustrative purposes only and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

[0025] In this utility model, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. The term "and / or" as used herein includes any and all combinations of one or more of the related listed items.

[0026] Please see Figures 1-3 The diagram shown is a schematic diagram of a gearbox housing support structure provided in an embodiment of the present invention. The gearbox housing support structure includes a support mechanism and is used to support the parking mechanism and prevent it from overturning.

[0027] To replace the method of arranging matching shaft holes or bearing seat holes on both sides of the housing to ensure the reliability of the shaft system support and reduce shaft system deflection and misalignment of moving parts on the shaft, this embodiment provides a support mechanism inside one side of the gearbox housing. This support mechanism includes a support assembly connected to the inner wall of the gearbox housing 1, and a limiting member 3 engaged with the support assembly.

[0028] Furthermore, the support assembly includes a support member 10 and several connecting arms 101 disposed around the support member 10. Both ends of each connecting arm 101 are fixedly connected to the support member 10 and the inner wall of the gearbox, respectively. The support member 10 is connected to the inner wall of the gearbox housing at multiple points, ensuring the strength of the support member 10 and reducing the probability of casting defects due to excessive wall thickness, while simultaneously reducing the weight of the gearbox housing 1. Additionally, a space is provided between the support member 10 and the bottom of the gearbox housing for the parking mechanism to rotate.

[0029] To accommodate the limiting member 3, a mounting groove 11 penetrating its end face is formed at the center of the support member 10 along a first direction, with the movable space located between the support member 10 and the bottom of the gearbox housing 1; the support member 10 has a retaining groove 12 along a second direction, which communicates with and is perpendicular to the mounting groove 11. In this embodiment, the first direction is the thickness direction of the support member 10, and the second direction is perpendicular to the first direction.

[0030] Furthermore, the limiting member 3 mentioned in this embodiment is a torsion spring. The annular part of the limiting member 3 is embedded in the slot 12 and sleeved on the parking shaft 2. One end is supported by the support boss 14 on the inner wall of the transmission housing, and the other end is fastened to the parking mechanism.

[0031] According to one aspect of the above technical solution, the parking mechanism includes a parking shaft 2 passing through the mounting groove 11, a parking arm 4 located at one end of the parking shaft 2, and a parking ratchet 5 located on the gearbox housing 1. The parking arm 4 is movably connected to one end of the parking shaft 2, and the circumferential surface of the parking shaft 2 is also provided with an annular groove. While the parking shaft 2 passes through the mounting groove 11, it also passes through the annular portion of the limiting member 3 and is engaged within the annular groove.

[0032] Additionally, it should be noted that a clearance groove 13 is provided on the inner wall of the gearbox housing 1 so that when the parking push rod moves to drive the parking arm 4 to rotate, it will not collide with the inner wall of the gearbox housing 1.

[0033] During parking, the parking push rod moves to drive the parking arm 4 to overcome the torque of the limiting member 3 and rotate clockwise around the parking shaft 2 within the clearance range of the clearance groove 13. It then engages with the tooth groove of the parking ratchet 5 to achieve parking. The radial force generated by the engagement of the parking arm 4 and the parking ratchet 5 will cause the entire parking shaft 2 to tend to flip. At this time, the support member 10 restricts this tendency, reduces the deflection of the parking shaft 2 and the amount of misalignment between the parking arm 4 and the parking ratchet 5, thereby enabling the support structure in this application to withstand higher load conditions.

[0034] In summary, the gearbox housing support structure proposed in this utility model optimizes the support component and gearbox housing into an integral structure, integrally formed with the gearbox housing blank, eliminating the need for additional assembly and directly saving on parts and assembly costs. The support component eliminates the need for corresponding shaft holes or bearing seat holes on the other side of the housing. The multi-point connection between the support component and the gearbox housing ensures the strength of the support component, reduces the probability of casting defects due to excessive wall thickness, and simultaneously reduces the weight of the gearbox housing. Furthermore, a space is provided between the support component and the bottom of the gearbox housing for the rotation of the parking mechanism, reducing the impact on parts placement. A limiting member is engaged with the support component to restrict the rotation of the parking mechanism.

[0035] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0036] The above-described embodiments are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A gearbox housing support structure, characterized in that, The gearbox housing support structure includes: The support mechanism includes a support assembly connected to the inner wall of the gearbox housing, and a limiting member engaged on the support assembly, wherein a parking mechanism is movably connected to the limiting member; The support assembly and the bottom of the gearbox housing have a space for the parking mechanism to rotate, and the limiting member is engaged with the support assembly to restrict the parking mechanism from flipping.

2. The gearbox housing support structure according to claim 1, characterized in that, The support assembly includes a support member and a plurality of connecting arms disposed on the support member, the two ends of the connecting arms being connected to the support member and the inner wall of the gearbox housing, respectively.

3. The gearbox housing support structure according to claim 2, characterized in that, The support member has a mounting groove extending through its end face along the first direction at its center, and the movable space is located between the support member and the bottom of the gearbox housing.

4. The gearbox housing support structure according to claim 3, characterized in that, The support member has a slot along the second direction, and the slot is connected to the mounting slot and is arranged perpendicularly.

5. The gearbox housing support structure according to claim 1, characterized in that, The parking mechanism includes a parking shaft passing through a mounting groove, a parking arm located at one end of the parking shaft, and a parking ratchet located on the gearbox housing. The parking arm is movably connected to one end of the parking shaft.

6. The gearbox housing support structure according to claim 5, characterized in that, The circumferential surface of the parking shaft is also provided with an annular groove.

7. The gearbox housing support structure according to claim 1, characterized in that, The limiting member is located in the slot and is engaged with the annular groove on the parking axle.

8. The gearbox housing support structure according to claim 7, characterized in that, One end of the limiting member abuts against the inner wall of the gearbox housing, and the other end is fastened to the parking arm.

Images